51587206014072 has 64 divisors (see below), whose sum is σ = 130427580650400. Its totient is φ = 17001157662720.

The previous prime is 51587206014037. The next prime is 51587206014139. The reversal of 51587206014072 is 27041060278515.

It is a super-2 number, since 2×51587206014072² (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 15 ways as a sum of consecutive naturals, for example, 25771572 + ... + 27701052.

Almost surely, 2^{51587206014072} is an apocalyptic number.

It is an amenable number.

51587206014072 is an abundant number, since it is smaller than the sum of its proper divisors (78840374636328).

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

51587206014072 is a wasteful number, since it uses less digits than its factorization.

51587206014072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942096 (or 1942092 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 51587206014072 in words is "fifty-one trillion, five hundred eighty-seven billion, two hundred six million, fourteen thousand, seventy-two".