51356465315 has 16 divisors (see below), whose sum is σ = 63138852000. Its totient is φ = 40078030080.

The previous prime is 51356465291. The next prime is 51356465341.

It is a happy number.

51356465315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51356465315 - 2²² = 51352271011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3220592 + ... + 3236498.

It is an arithmetic number, because the mean of its divisors is an integer number (3946178250).

Almost surely, 2^51356465315 is an apocalyptic number.

51356465315 is a deficient number, since it is larger than the sum of its proper divisors (11782386685).

51356465315 is a wasteful number, since it uses less digits than its factorization.

51356465315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31702.

The product of its digits is 810000, while the sum is 44.

Adding to 51356465315 its product of digits (810000), we get a palindrome (51357275315).

Subtracting from 51356465315 its product of digits (810000), we obtain a palindrome (51355655315).

The spelling of 51356465315 in words is "fifty-one billion, three hundred fifty-six million, four hundred sixty-five thousand, three hundred fifteen".