25777056968 has 32 divisors (see below), whose sum is σ = 52058307000. Its totient is φ = 11895164928.

The previous prime is 25777056953. The next prime is 25777056983. The reversal of 25777056968 is 86965077752.

It is an interprime number because it is at equal distance from previous prime (25777056953) and next prime (25777056983).

It can be written as a sum of positive squares in 4 ways, for example, as 23049919684 + 2727137284 = 151822^2 + 52222^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25777056968.

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, 768680 + ... + 801512.

Almost surely, 2^25777056968 is an apocalyptic number.

It is an amenable number.

25777056968 is an abundant number, since it is smaller than the sum of its proper divisors (26281250032).

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

25777056968 is a wasteful number, since it uses less digits than its factorization.

25777056968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40401 (or 40397 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 62.

The spelling of 25777056968 in words is "twenty-five billion, seven hundred seventy-seven million, fifty-six thousand, nine hundred sixty-eight".