51731356426730 has 32 divisors (see below), whose sum is σ = 96033240817920. Its totient is φ = 20049044944320.

The previous prime is 51731356426727. The next prime is 51731356426781. The reversal of 51731356426730 is 3762465313715.

It is a super-2 number, since 2×51731356426730² (a number of 28 digits) contains 22 as substring.

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, 292410476 + ... + 292587335.

It is an arithmetic number, because the mean of its divisors is an integer number (3001038775560).

Almost surely, 2^{51731356426730} is an apocalyptic number.

51731356426730 is a deficient number, since it is larger than the sum of its proper divisors (44301884391190).

51731356426730 is a wasteful number, since it uses less digits than its factorization.

51731356426730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584998094.

The product of its (nonzero) digits is 9525600, while the sum is 53.

The spelling of 51731356426730 in words is "fifty-one trillion, seven hundred thirty-one billion, three hundred fifty-six million, four hundred twenty-six thousand, seven hundred thirty".