25268668857 has 12 divisors (see below), whose sum is σ = 37117819440. Its totient is φ = 16560257208.

The previous prime is 25268668847. The next prime is 25268668897. The reversal of 25268668857 is 75886686252.

It is not a de Polignac number, because 25268668857 - 2²⁴ = 25251891641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25268668794 and 25268668803.

It is not an unprimeable number, because it can be changed into a prime (25268668847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23792943 + ... + 23794004.

It is an arithmetic number, because the mean of its divisors is an integer number (3093151620).

Almost surely, 2^25268668857 is an apocalyptic number.

It is an amenable number.

25268668857 is a deficient number, since it is larger than the sum of its proper divisors (11849150583).

25268668857 is a wasteful number, since it uses less digits than its factorization.

25268668857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47587012 (or 47587009 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 63.

The spelling of 25268668857 in words is "twenty-five billion, two hundred sixty-eight million, six hundred sixty-eight thousand, eight hundred fifty-seven".