2755865862 has 64 divisors (see below), whose sum is σ = 6218265600. Its totient is φ = 904569120.

The previous prime is 2755865813. The next prime is 2755865867. The reversal of 2755865862 is 2685685572.

2755865862 is a `hidden beast` number, since 2 + 7 + 5 + 58 + 6 + 586 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 2755865799 and 2755865808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755865867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2332912 + ... + 2334092.

It is an arithmetic number, because the mean of its divisors is an integer number (97160400).

Almost surely, 2^2755865862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2755865862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3109132800).

2755865862 is an abundant number, since it is smaller than the sum of its proper divisors (3462399738).

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

2755865862 is a wasteful number, since it uses less digits than its factorization.

2755865862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1812 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The square root of 2755865862 is about 52496.3414153787. The cubic root of 2755865862 is about 1402.0151018959.

The spelling of 2755865862 in words is "two billion, seven hundred fifty-five million, eight hundred sixty-five thousand, eight hundred sixty-two".