2637640125264 has 20 divisors (see below), whose sum is σ = 6813903657056. Its totient is φ = 879213375072.

The previous prime is 2637640125257. The next prime is 2637640125271. The reversal of 2637640125264 is 4625210467362.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2637640125257) and next prime (2637640125271).

It is a super-2 number, since 2×2637640125264² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 54950835943 = 2637640125264 / (2 + 6 + 3 + 7 + 6 + 4 + 0 + 1 + 2 + 5 + 2 + 6 + 4).

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, 27475417924 + ... + 27475418019.

Almost surely, 2^{2637640125264} is an apocalyptic number.

2637640125264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2637640125264 is an abundant number, since it is smaller than the sum of its proper divisors (4176263531792).

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

2637640125264 is a wasteful number, since it uses less digits than its factorization.

2637640125264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54950835954 (or 54950835948 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 2637640125264 in words is "two trillion, six hundred thirty-seven billion, six hundred forty million, one hundred twenty-five thousand, two hundred sixty-four".