516881684624 has 20 divisors (see below), whose sum is σ = 1005949115136. Its totient is φ = 257281912992.

The previous prime is 516881684623. The next prime is 516881684639. The reversal of 516881684624 is 426486188615.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (516881684623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72429404 + ... + 72436539.

Almost surely, 2^516881684624 is an apocalyptic number.

It is an amenable number.

516881684624 is a deficient number, since it is larger than the sum of its proper divisors (489067430512).

516881684624 is a wasteful number, since it uses less digits than its factorization.

516881684624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144866174 (or 144866168 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 59.

The spelling of 516881684624 in words is "five hundred sixteen billion, eight hundred eighty-one million, six hundred eighty-four thousand, six hundred twenty-four".