616493935979 has 16 divisors (see below), whose sum is σ = 647141529600. Its totient is φ = 586169185536.

The previous prime is 616493935961. The next prime is 616493936039. The reversal of 616493935979 is 979539394616.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616493935979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616493935909) 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, 11166587 + ... + 11221659.

It is an arithmetic number, because the mean of its divisors is an integer number (40446345600).

Almost surely, 2^616493935979 is an apocalyptic number.

616493935979 is a deficient number, since it is larger than the sum of its proper divisors (30647593621).

616493935979 is a wasteful number, since it uses less digits than its factorization.

616493935979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57994.

The product of its digits is 297606960, while the sum is 71.

The spelling of 616493935979 in words is "six hundred sixteen billion, four hundred ninety-three million, nine hundred thirty-five thousand, nine hundred seventy-nine".