616768772 has 36 divisors (see below), whose sum is σ = 1166133360. Its totient is φ = 285293184.

The previous prime is 616768771. The next prime is 616768787. The reversal of 616768772 is 277867616.

It is a super-2 number, since 2×616768772² = 760807436228775968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 616768772.

It is not an unprimeable number, because it can be changed into a prime (616768771) 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, 63683 + ... + 72725.

Almost surely, 2^616768772 is an apocalyptic number.

It is an amenable number.

616768772 is a deficient number, since it is larger than the sum of its proper divisors (549364588).

616768772 is a wasteful number, since it uses less digits than its factorization.

616768772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9140 (or 9121 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 50.

The square root of 616768772 is about 24834.8298162077. The cubic root of 616768772 is about 851.2179872140.

The spelling of 616768772 in words is "six hundred sixteen million, seven hundred sixty-eight thousand, seven hundred seventy-two".