25830487065957 has 64 divisors (see below), whose sum is σ = 39637420462080. Its totient is φ = 14656834842624.

The previous prime is 25830487065949. The next prime is 25830487066001. The reversal of 25830487065957 is 75956078403852.

It is not a de Polignac number, because 25830487065957 - 2³ = 25830487065949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25830487065891 and 25830487065900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25830487065947) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6802865383 + ... + 6802869179.

It is an arithmetic number, because the mean of its divisors is an integer number (619334694720).

Almost surely, 2^{25830487065957} is an apocalyptic number.

It is an amenable number.

25830487065957 is a deficient number, since it is larger than the sum of its proper divisors (13806933396123).

25830487065957 is a wasteful number, since it uses less digits than its factorization.

25830487065957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642.

The product of its (nonzero) digits is 508032000, while the sum is 69.

The spelling of 25830487065957 in words is "twenty-five trillion, eight hundred thirty billion, four hundred eighty-seven million, sixty-five thousand, nine hundred fifty-seven".