51239712853 has 16 divisors (see below), whose sum is σ = 60489834496. Its totient is φ = 42474060720.

The previous prime is 51239712827. The next prime is 51239712857. The reversal of 51239712853 is 35821793215.

It is not a de Polignac number, because 51239712853 - 2²⁹ = 50702841941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51239712857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242200 + ... + 401422.

It is an arithmetic number, because the mean of its divisors is an integer number (3780614656).

Almost surely, 2^51239712853 is an apocalyptic number.

It is an amenable number.

51239712853 is a deficient number, since it is larger than the sum of its proper divisors (9250121643).

51239712853 is a wasteful number, since it uses less digits than its factorization.

51239712853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160744.

The product of its digits is 453600, while the sum is 46.

The spelling of 51239712853 in words is "fifty-one billion, two hundred thirty-nine million, seven hundred twelve thousand, eight hundred fifty-three".