616478933728 has 48 divisors (see below), whose sum is σ = 1388221722720. Its totient is φ = 263987329536.

The previous prime is 616478933717. The next prime is 616478933731. The reversal of 616478933728 is 827339874616.

It is a self number, because there is not a number n which added to its sum of digits gives 616478933728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862723 + ... + 1406146.

It is an arithmetic number, because the mean of its divisors is an integer number (28921285890).

Almost surely, 2^616478933728 is an apocalyptic number.

It is an amenable number.

616478933728 is an abundant number, since it is smaller than the sum of its proper divisors (771742788992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616478933728 is a wasteful number, since it uses less digits than its factorization.

616478933728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270099 (or 2270091 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 64.

The spelling of 616478933728 in words is "six hundred sixteen billion, four hundred seventy-eight million, nine hundred thirty-three thousand, seven hundred twenty-eight".