25640175126368 has 24 divisors (see below), whose sum is σ = 55068103397160. Its totient is φ = 11654625057280.

The previous prime is 25640175126359. The next prime is 25640175126383. The reversal of 25640175126368 is 86362157104652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36420702953 + ... + 36420703656.

It is an arithmetic number, because the mean of its divisors is an integer number (2294504308215).

Almost surely, 2^{25640175126368} is an apocalyptic number.

It is an amenable number.

25640175126368 is an abundant number, since it is smaller than the sum of its proper divisors (29427928270792).

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

25640175126368 is a wasteful number, since it uses less digits than its factorization.

25640175126368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72841406630 (or 72841406622 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 25640175126368 in words is "twenty-five trillion, six hundred forty billion, one hundred seventy-five million, one hundred twenty-six thousand, three hundred sixty-eight".