51464465331 has 8 divisors (see below), whose sum is σ = 68627779584. Its totient is φ = 34305397320.

The previous prime is 51464465323. The next prime is 51464465357. The reversal of 51464465331 is 13356446415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51464465331 - 2³ = 51464465323 is a prime.

It is a super-2 number, since 2×51464465331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51464465231) 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 7 ways as a sum of consecutive naturals, for example, 1033171 + ... + 1081836.

It is an arithmetic number, because the mean of its divisors is an integer number (8578472448).

Almost surely, 2^51464465331 is an apocalyptic number.

51464465331 is a deficient number, since it is larger than the sum of its proper divisors (17163314253).

51464465331 is a wasteful number, since it uses less digits than its factorization.

51464465331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123121.

The product of its digits is 518400, while the sum is 42.

It can be divided in two parts, 514644 and 65331, that added together give a palindrome (579975).

The spelling of 51464465331 in words is "fifty-one billion, four hundred sixty-four million, four hundred sixty-five thousand, three hundred thirty-one".