51746864715 has 64 divisors (see below), whose sum is σ = 113223936000. Its totient is φ = 21836034432.

The previous prime is 51746864711. The next prime is 51746864747.

51746864715 is a `hidden beast` number, since 51 + 7 + 46 + 86 + 471 + 5 = 666.

51746864715 is nontrivially palindromic in base 10.

51746864715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51746864715 - 2² = 51746864711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51746864711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2093815 + ... + 2118384.

It is an arithmetic number, because the mean of its divisors is an integer number (1769124000).

Almost surely, 2^51746864715 is an apocalyptic number.

51746864715 is an abundant number, since it is smaller than the sum of its proper divisors (61477071285).

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

51746864715 is a wasteful number, since it uses less digits than its factorization.

51746864715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212233 (or 4212227 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 51746864715 in words is "fifty-one billion, seven hundred forty-six million, eight hundred sixty-four thousand, seven hundred fifteen".