25672006657434 has 64 divisors (see below), whose sum is σ = 54261307330560. Its totient is φ = 8084457884160.

The previous prime is 25672006657397. The next prime is 25672006657463. The reversal of 25672006657434 is 43475660027652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14410602 + ... + 16093770.

It is an arithmetic number, because the mean of its divisors is an integer number (847832927040).

Almost surely, 2^{25672006657434} is an apocalyptic number.

25672006657434 is an abundant number, since it is smaller than the sum of its proper divisors (28589300673126).

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

25672006657434 is a wasteful number, since it uses less digits than its factorization.

25672006657434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685155.

The product of its (nonzero) digits is 50803200, while the sum is 57.

The spelling of 25672006657434 in words is "twenty-five trillion, six hundred seventy-two billion, six million, six hundred fifty-seven thousand, four hundred thirty-four".