25716133908 has 72 divisors (see below), whose sum is σ = 70365274560. Its totient is φ = 8120872080.

The previous prime is 25716133907. The next prime is 25716133913. The reversal of 25716133908 is 80933161752.

25716133908 is a `hidden beast` number, since 25 + 7 + 1 + 613 + 3 + 9 + 0 + 8 = 666.

It is a super-2 number, since 2×25716133908² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25716133901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290808 + ... + 368783.

It is an arithmetic number, because the mean of its divisors is an integer number (977295480).

Almost surely, 2^25716133908 is an apocalyptic number.

It is an amenable number.

25716133908 is an abundant number, since it is smaller than the sum of its proper divisors (44649140652).

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

25716133908 is a wasteful number, since it uses less digits than its factorization.

25716133908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659642 (or 659615 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 25716133908 in words is "twenty-five billion, seven hundred sixteen million, one hundred thirty-three thousand, nine hundred eight".