51431670710742 has 32 divisors (see below), whose sum is σ = 120059340751872. Its totient is φ = 14382108526464.

The previous prime is 51431670710713. The next prime is 51431670710779. The reversal of 51431670710742 is 24701707613415.

It is a junction number, because it is equal to n+sod(n) for n = 51431670710691 and 51431670710700.

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, 13027270243 + ... + 13027274190.

It is an arithmetic number, because the mean of its divisors is an integer number (3751854398496).

Almost surely, 2^{51431670710742} is an apocalyptic number.

51431670710742 is an abundant number, since it is smaller than the sum of its proper divisors (68627670041130).

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

51431670710742 is a wasteful number, since it uses less digits than its factorization.

51431670710742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26054544492.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 51431670710742 in words is "fifty-one trillion, four hundred thirty-one billion, six hundred seventy million, seven hundred ten thousand, seven hundred forty-two".