25690004872 has 32 divisors (see below), whose sum is σ = 56537853120. Its totient is φ = 10712433600.

The previous prime is 25690004843. The next prime is 25690004927. The reversal of 25690004872 is 27840009652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6197254 + ... + 6201397.

It is an arithmetic number, because the mean of its divisors is an integer number (1766807910).

Almost surely, 2^25690004872 is an apocalyptic number.

It is an amenable number.

25690004872 is an abundant number, since it is smaller than the sum of its proper divisors (30847848248).

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

25690004872 is a wasteful number, since it uses less digits than its factorization.

25690004872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12398701 (or 12398697 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 25690004872 in words is "twenty-five billion, six hundred ninety million, four thousand, eight hundred seventy-two".