51756688742 has 16 divisors (see below), whose sum is σ = 86758442064. Its totient is φ = 22951968000.

The previous prime is 51756688691. The next prime is 51756688757. The reversal of 51756688742 is 24788665715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28689059 + ... + 28690862.

It is an arithmetic number, because the mean of its divisors is an integer number (5422402629).

Almost surely, 2^51756688742 is an apocalyptic number.

51756688742 is a deficient number, since it is larger than the sum of its proper divisors (35001753322).

51756688742 is a wasteful number, since it uses less digits than its factorization.

51756688742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57379975.

The product of its digits is 22579200, while the sum is 59.

The spelling of 51756688742 in words is "fifty-one billion, seven hundred fifty-six million, six hundred eighty-eight thousand, seven hundred forty-two".