25865709882 has 32 divisors (see below), whose sum is σ = 54781702272. Its totient is φ = 8113657344.

The previous prime is 25865709839. The next prime is 25865709911. The reversal of 25865709882 is 28890756852.

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, 1156518 + ... + 1178670.

It is an arithmetic number, because the mean of its divisors is an integer number (1711928196).

Almost surely, 2^25865709882 is an apocalyptic number.

25865709882 is an abundant number, since it is smaller than the sum of its proper divisors (28915992390).

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

25865709882 is a wasteful number, since it uses less digits than its factorization.

25865709882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33622.

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 25865709882 in words is "twenty-five billion, eight hundred sixty-five million, seven hundred nine thousand, eight hundred eighty-two".