51351888815315 has 16 divisors (see below), whose sum is σ = 69542369808480. Its totient is φ = 36059006565120.

The previous prime is 51351888815243. The next prime is 51351888815327.

51351888815315 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-51351888815315 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, 16097769194 + ... + 16097772383.

It is an arithmetic number, because the mean of its divisors is an integer number (4346398113030).

Almost surely, 2^{51351888815315} is an apocalyptic number.

51351888815315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51351888815315 is a deficient number, since it is larger than the sum of its proper divisors (18190480993165).

51351888815315 is a wasteful number, since it uses less digits than its factorization.

51351888815315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32195541622.

The product of its digits is 23040000, while the sum is 62.

The spelling of 51351888815315 in words is "fifty-one trillion, three hundred fifty-one billion, eight hundred eighty-eight million, eight hundred fifteen thousand, three hundred fifteen".