51751878716 has 12 divisors (see below), whose sum is σ = 91278905088. Its totient is φ = 25672191552.

The previous prime is 51751878707. The next prime is 51751878721. The reversal of 51751878716 is 61787815715.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50936381 + ... + 50937396.

It is an arithmetic number, because the mean of its divisors is an integer number (7606575424).

Almost surely, 2^51751878716 is an apocalyptic number.

It is an amenable number.

51751878716 is a deficient number, since it is larger than the sum of its proper divisors (39527026372).

51751878716 is a wasteful number, since it uses less digits than its factorization.

51751878716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101873908 (or 101873906 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 56.

The spelling of 51751878716 in words is "fifty-one billion, seven hundred fifty-one million, eight hundred seventy-eight thousand, seven hundred sixteen".