25612763904 has 324 divisors, whose sum is σ = 91398858096. Its totient is φ = 6754295808.

The previous prime is 25612763887. The next prime is 25612763929. The reversal of 25612763904 is 40936721652.

25612763904 is a `hidden beast` number, since 2 + 5 + 6 + 1 + 2 + 7 + 639 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25612763904.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2720934 + ... + 2730330.

Almost surely, 2^25612763904 is an apocalyptic number.

25612763904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25612763904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45699429048).

25612763904 is an abundant number, since it is smaller than the sum of its proper divisors (65786094192).

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

25612763904 is a wasteful number, since it uses less digits than its factorization.

25612763904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452 (or 9422 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 25612763904 in words is "twenty-five billion, six hundred twelve million, seven hundred sixty-three thousand, nine hundred four".