25700855862 has 32 divisors (see below), whose sum is σ = 57590129664. Its totient is φ = 7577647200.

The previous prime is 25700855857. The next prime is 25700855881. The reversal of 25700855862 is 26855800752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5259814 + ... + 5264697.

It is an arithmetic number, because the mean of its divisors is an integer number (1799691552).

Almost surely, 2^25700855862 is an apocalyptic number.

25700855862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25700855862 is an abundant number, since it is smaller than the sum of its proper divisors (31889273802).

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

25700855862 is a wasteful number, since it uses less digits than its factorization.

25700855862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524564.

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 25700855862 in words is "twenty-five billion, seven hundred million, eight hundred fifty-five thousand, eight hundred sixty-two".