51934777472 has 24 divisors (see below), whose sum is σ = 103468951215. Its totient is φ = 25966099584.

The previous prime is 51934777471. The next prime is 51934777483. The reversal of 51934777472 is 27477743915.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 25967388736 + 25967388736 = 161144^2 + 161144^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161144.

It is a super-2 number, since 2×51934777472² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51934777471) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2568233 + ... + 2588375.

Almost surely, 2^51934777472 is an apocalyptic number.

It is an amenable number.

51934777472 is a deficient number, since it is larger than the sum of its proper divisors (51534173743).

51934777472 is an frugal number, since it uses more digits than its factorization.

51934777472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40300 (or 20145 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 56.

The spelling of 51934777472 in words is "fifty-one billion, nine hundred thirty-four million, seven hundred seventy-seven thousand, four hundred seventy-two".