747647655564 has 24 divisors (see below), whose sum is σ = 1744529712688. Its totient is φ = 249213240000.

The previous prime is 747647655563. The next prime is 747647655619. The reversal of 747647655564 is 465556746747.

747647655564 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 747647655495 and 747647655504.

It is not an unprimeable number, because it can be changed into a prime (747647655563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091814 + ... + 1639314.

Almost surely, 2^747647655564 is an apocalyptic number.

It is an amenable number.

747647655564 is an abundant number, since it is smaller than the sum of its proper divisors (996882057124).

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

747647655564 is a wasteful number, since it uses less digits than its factorization.

747647655564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661305 (or 661303 counting only the distinct ones).

The product of its digits is 592704000, while the sum is 66.

The spelling of 747647655564 in words is "seven hundred forty-seven billion, six hundred forty-seven million, six hundred fifty-five thousand, five hundred sixty-four".