51731058315736 has 32 divisors (see below), whose sum is σ = 98264069337600. Its totient is φ = 25527576765600.

The previous prime is 51731058315731. The next prime is 51731058315767. The reversal of 51731058315736 is 63751385013715.

51731058315736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51731058315736² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51731058315731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15359490 + ... + 18422161.

It is an arithmetic number, because the mean of its divisors is an integer number (3070752166800).

Almost surely, 2^{51731058315736} is an apocalyptic number.

It is an amenable number.

51731058315736 is a deficient number, since it is larger than the sum of its proper divisors (46533011021864).

51731058315736 is a wasteful number, since it uses less digits than its factorization.

51731058315736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33784159 (or 33784155 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 51731058315736 in words is "fifty-one trillion, seven hundred thirty-one billion, fifty-eight million, three hundred fifteen thousand, seven hundred thirty-six".