25271763422664 has 64 divisors (see below), whose sum is σ = 68924000471040. Its totient is φ = 7657997981760.

The previous prime is 25271763422639. The next prime is 25271763422693. The reversal of 25271763422664 is 46622436717252.

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, 18338589 + ... + 19668435.

It is an arithmetic number, because the mean of its divisors is an integer number (1076937507360).

Almost surely, 2^{25271763422664} is an apocalyptic number.

25271763422664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25271763422664 is an abundant number, since it is smaller than the sum of its proper divisors (43652237048376).

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

25271763422664 is a wasteful number, since it uses less digits than its factorization.

25271763422664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401850 (or 1401846 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 57.

The spelling of 25271763422664 in words is "twenty-five trillion, two hundred seventy-one billion, seven hundred sixty-three million, four hundred twenty-two thousand, six hundred sixty-four".