51715284072 has 32 divisors (see below), whose sum is σ = 132441583680. Its totient is φ = 16817978240.

The previous prime is 51715284067. The next prime is 51715284073. The reversal of 51715284072 is 27048251715.

It is not an unprimeable number, because it can be changed into a prime (51715284073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26277108 + ... + 26279075.

It is an arithmetic number, because the mean of its divisors is an integer number (4138799490).

Almost surely, 2^51715284072 is an apocalyptic number.

It is an amenable number.

51715284072 is an abundant number, since it is smaller than the sum of its proper divisors (80726299608).

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

51715284072 is a wasteful number, since it uses less digits than its factorization.

51715284072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52556233 (or 52556229 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 51715284072 in words is "fifty-one billion, seven hundred fifteen million, two hundred eighty-four thousand, seventy-two".