25817011038 has 64 divisors (see below), whose sum is σ = 70610641920. Its totient is φ = 6808880736.

The previous prime is 25817010991. The next prime is 25817011049. The reversal of 25817011038 is 83011071852.

25817011038 is a `hidden beast` number, since 2 + 581 + 70 + 1 + 1 + 0 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25817010993 and 25817011011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2621970 + ... + 2631797.

It is an arithmetic number, because the mean of its divisors is an integer number (1103291280).

Almost surely, 2^25817011038 is an apocalyptic number.

25817011038 is an abundant number, since it is smaller than the sum of its proper divisors (44793630882).

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

25817011038 is a wasteful number, since it uses less digits than its factorization.

25817011038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253798 (or 5253792 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The spelling of 25817011038 in words is "twenty-five billion, eight hundred seventeen million, eleven thousand, thirty-eight".