51886272815 has 32 divisors (see below), whose sum is σ = 74084201856. Its totient is φ = 34494197760.

The previous prime is 51886272791. The next prime is 51886272829. The reversal of 51886272815 is 51827268815.

It is a de Polignac number, because none of the positive numbers 2^k-51886272815 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 995366 + ... + 1046195.

It is an arithmetic number, because the mean of its divisors is an integer number (2315131308).

Almost surely, 2^51886272815 is an apocalyptic number.

51886272815 is a deficient number, since it is larger than the sum of its proper divisors (22197929041).

51886272815 is a wasteful number, since it uses less digits than its factorization.

51886272815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041619.

The product of its digits is 2150400, while the sum is 53.

The spelling of 51886272815 in words is "fifty-one billion, eight hundred eighty-six million, two hundred seventy-two thousand, eight hundred fifteen".