25957402797824 has 18 divisors (see below), whose sum is σ = 51813409491480. Its totient is φ = 12978701398784.

The previous prime is 25957402797769. The next prime is 25957402797829. The reversal of 25957402797824 is 42879720475952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25957402797829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50698052084 + ... + 50698052595.

Almost surely, 2^{25957402797824} is an apocalyptic number.

It is an amenable number.

25957402797824 is a deficient number, since it is larger than the sum of its proper divisors (25856006693656).

25957402797824 is an equidigital number, since it uses as much as digits as its factorization.

25957402797824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101396104695 (or 101396104681 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 71.

The spelling of 25957402797824 in words is "twenty-five trillion, nine hundred fifty-seven billion, four hundred two million, seven hundred ninety-seven thousand, eight hundred twenty-four".