25137764012764 has 72 divisors (see below), whose sum is σ = 50609753328960. Its totient is φ = 10899218034432.

The previous prime is 25137764012747. The next prime is 25137764012831. The reversal of 25137764012764 is 46721046773152.

It is a super-2 number, since 2×25137764012764² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16602724 + ... + 18053419.

It is an arithmetic number, because the mean of its divisors is an integer number (702913240680).

Almost surely, 2^{25137764012764} is an apocalyptic number.

It is an amenable number.

25137764012764 is an abundant number, since it is smaller than the sum of its proper divisors (25471989316196).

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

25137764012764 is a wasteful number, since it uses less digits than its factorization.

25137764012764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34656239 (or 34656224 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 25137764012764 in words is "twenty-five trillion, one hundred thirty-seven billion, seven hundred sixty-four million, twelve thousand, seven hundred sixty-four".