51688337003670 has 32 divisors (see below), whose sum is σ = 124088786996832. Its totient is φ = 13779470068992.

The previous prime is 51688337003659. The next prime is 51688337003713. The reversal of 51688337003670 is 7630073388615.

It is a super-2 number, since 2×51688337003670² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51688337003670.

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, 255301207 + ... + 255503586.

It is an arithmetic number, because the mean of its divisors is an integer number (3877774593651).

Almost surely, 2^{51688337003670} is an apocalyptic number.

51688337003670 is an abundant number, since it is smaller than the sum of its proper divisors (72400449993162).

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

51688337003670 is a wasteful number, since it uses less digits than its factorization.

51688337003670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510808176.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 51688337003670 in words is "fifty-one trillion, six hundred eighty-eight billion, three hundred thirty-seven million, three thousand, six hundred seventy".