516231966874 has 24 divisors (see below), whose sum is σ = 863660413980. Its totient is φ = 230045004672.

The previous prime is 516231966871. The next prime is 516231966911. The reversal of 516231966874 is 478669132615.

It can be written as a sum of positive squares in 6 ways, for example, as 85823803849 + 430408163025 = 292957^2 + 656055^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (516231966871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11782579 + ... + 11826310.

Almost surely, 2^516231966874 is an apocalyptic number.

516231966874 is a deficient number, since it is larger than the sum of its proper divisors (347428447106).

516231966874 is a wasteful number, since it uses less digits than its factorization.

516231966874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23608962 (or 23608933 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 58.

The spelling of 516231966874 in words is "five hundred sixteen billion, two hundred thirty-one million, nine hundred sixty-six thousand, eight hundred seventy-four".