25975064418 has 32 divisors (see below), whose sum is σ = 52271980800. Its totient is φ = 8604804096.

The previous prime is 25975064399. The next prime is 25975064429. The reversal of 25975064418 is 81446057952.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192368 + ... + 1213956.

It is an arithmetic number, because the mean of its divisors is an integer number (1633499400).

Almost surely, 2^25975064418 is an apocalyptic number.

25975064418 is an abundant number, since it is smaller than the sum of its proper divisors (26296916382).

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

25975064418 is a wasteful number, since it uses less digits than its factorization.

25975064418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22826.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 25975064418 in words is "twenty-five billion, nine hundred seventy-five million, sixty-four thousand, four hundred eighteen".