616763388 has 12 divisors (see below), whose sum is σ = 1439114600. Its totient is φ = 205587792.

The previous prime is 616763363. The next prime is 616763401. The reversal of 616763388 is 883367616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25698463 + ... + 25698486.

Almost surely, 2^616763388 is an apocalyptic number.

It is an amenable number.

616763388 is an abundant number, since it is smaller than the sum of its proper divisors (822351212).

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

616763388 is a wasteful number, since it uses less digits than its factorization.

616763388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51396956 (or 51396954 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 616763388 is about 24834.7214198187. The cubic root of 616763388 is about 851.2155103425.

The spelling of 616763388 in words is "six hundred sixteen million, seven hundred sixty-three thousand, three hundred eighty-eight".