25597468689 has 32 divisors (see below), whose sum is σ = 37488998400. Its totient is φ = 15440742720.

The previous prime is 25597468681. The next prime is 25597468691. The reversal of 25597468689 is 98686479552.

It is not a de Polignac number, because 25597468689 - 2³ = 25597468681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25597468681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398374 + ... + 458144.

It is an arithmetic number, because the mean of its divisors is an integer number (1171531200).

Almost surely, 2^25597468689 is an apocalyptic number.

It is an amenable number.

25597468689 is a deficient number, since it is larger than the sum of its proper divisors (11891529711).

25597468689 is a wasteful number, since it uses less digits than its factorization.

25597468689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60005.

The product of its digits is 261273600, while the sum is 69.

The spelling of 25597468689 in words is "twenty-five billion, five hundred ninety-seven million, four hundred sixty-eight thousand, six hundred eighty-nine".