2855081779200 has 1680 divisors, whose sum is σ = 12624828923520. Its totient is φ = 623632711680.

The previous prime is 2855081779183. The next prime is 2855081779211. The reversal of 2855081779200 is 29771805582.

2855081779200 is a `hidden beast` number, since 2 + 8 + 550 + 8 + 17 + 79 + 2 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2670796266 + ... + 2670797334.

Almost surely, 2^{2855081779200} is an apocalyptic number.

2855081779200 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 2855081779200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6312414461760).

2855081779200 is an abundant number, since it is smaller than the sum of its proper divisors (9769747144320).

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

2855081779200 is a wasteful number, since it uses less digits than its factorization.

2855081779200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 2855081779200 in words is "two trillion, eight hundred fifty-five billion, eighty-one million, seven hundred seventy-nine thousand, two hundred".