516512393915 has 32 divisors (see below), whose sum is σ = 782638018560. Its totient is φ = 318852509184.

The previous prime is 516512393911. The next prime is 516512393981. The reversal of 516512393915 is 519393215615.

It is not a de Polignac number, because 516512393915 - 2² = 516512393911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516512393911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18857795 + ... + 18885164.

It is an arithmetic number, because the mean of its divisors is an integer number (24457438080).

Almost surely, 2^516512393915 is an apocalyptic number.

516512393915 is a deficient number, since it is larger than the sum of its proper divisors (266125624645).

516512393915 is a wasteful number, since it uses less digits than its factorization.

516512393915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37743011.

The product of its digits is 1093500, while the sum is 50.

The spelling of 516512393915 in words is "five hundred sixteen billion, five hundred twelve million, three hundred ninety-three thousand, nine hundred fifteen".