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2855270978560 = 210571113619133
BaseRepresentation
bin101001100011001011011…
…010011001010000000000
3101002221221202002012211201
4221203023122121100000
5333240043332303220
610023405434150544
7413200163605210
oct51431332312000
911087852065751
102855270978560
11a00a06037860
123a1454582454
131793352b8690
149c2a55c4240
154e413795d0a
hex298cb699400

2855270978560 has 704 divisors, whose sum is σ = 9348050686464. Its totient is φ = 807940915200.

The previous prime is 2855270978551. The next prime is 2855270978569. The reversal of 2855270978560 is 658790725582.

It is an interprime number because it is at equal distance from previous prime (2855270978551) and next prime (2855270978569).

It is a tau number, because it is divible by the number of its divisors (704).

It is a super-2 number, since 2×28552709785602 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a junction number, because it is equal to n+sod(n) for n = 2855270978492 and 2855270978501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855270978569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 312627754 + ... + 312636886.

Almost surely, 22855270978560 is an apocalyptic number.

2855270978560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2855270978560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4674025343232).

2855270978560 is an abundant number, since it is smaller than the sum of its proper divisors (6492779707904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2855270978560 is a wasteful number, since it uses less digits than its factorization.

2855270978560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9250 (or 9232 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 64.

The spelling of 2855270978560 in words is "two trillion, eight hundred fifty-five billion, two hundred seventy million, nine hundred seventy-eight thousand, five hundred sixty".