51793314891 has 16 divisors (see below), whose sum is σ = 69453515040. Its totient is φ = 34331074560.

The previous prime is 51793314887. The next prime is 51793314919. The reversal of 51793314891 is 19841339715.

It is not a de Polignac number, because 51793314891 - 2² = 51793314887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51793314091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5138805 + ... + 5148873.

It is an arithmetic number, because the mean of its divisors is an integer number (4340844690).

Almost surely, 2^51793314891 is an apocalyptic number.

51793314891 is a deficient number, since it is larger than the sum of its proper divisors (17660200149).

51793314891 is a wasteful number, since it uses less digits than its factorization.

51793314891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19726.

The product of its digits is 816480, while the sum is 51.

The spelling of 51793314891 in words is "fifty-one billion, seven hundred ninety-three million, three hundred fourteen thousand, eight hundred ninety-one".