51320271832 has 8 divisors (see below), whose sum is σ = 96225509700. Its totient is φ = 25660135912.

The previous prime is 51320271817. The next prime is 51320271881. The reversal of 51320271832 is 23817202315.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207516982 + ... + 3207516997.

Almost surely, 2^51320271832 is an apocalyptic number.

It is an amenable number.

51320271832 is a deficient number, since it is larger than the sum of its proper divisors (44905237868).

51320271832 is a wasteful number, since it uses less digits than its factorization.

51320271832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415033985 (or 6415033981 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 51320271832 in words is "fifty-one billion, three hundred twenty million, two hundred seventy-one thousand, eight hundred thirty-two".