51349494315 has 16 divisors (see below), whose sum is σ = 93896218368. Its totient is φ = 23474054496.

The previous prime is 51349494311. The next prime is 51349494319.

It is a happy number.

51349494315 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (51349494311) and next prime (51349494319).

It is not a de Polignac number, because 51349494315 - 2² = 51349494311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51349494311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244521297 + ... + 244521506.

It is an arithmetic number, because the mean of its divisors is an integer number (5868513648).

Almost surely, 2^51349494315 is an apocalyptic number.

51349494315 is a deficient number, since it is larger than the sum of its proper divisors (42546724053).

51349494315 is a wasteful number, since it uses less digits than its factorization.

51349494315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489042818.

The product of its digits is 1166400, while the sum is 48.

The spelling of 51349494315 in words is "fifty-one billion, three hundred forty-nine million, four hundred ninety-four thousand, three hundred fifteen".