747870436016568 has 96 divisors (see below), whose sum is σ = 2090831885775360. Its totient is φ = 241247222521920.

The previous prime is 747870436016563. The next prime is 747870436016569. The reversal of 747870436016568 is 865610634078747.

747870436016568 is a `hidden beast` number, since 7 + 4 + 7 + 8 + 7 + 0 + 4 + 3 + 601 + 6 + 5 + 6 + 8 = 666.

It is a super-2 number, since 2×747870436016568² (a number of 31 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 747870436016496 and 747870436016505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747870436016563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465478471 + ... + 467082377.

It is an arithmetic number, because the mean of its divisors is an integer number (21779498810160).

Almost surely, 2^{747870436016568} is an apocalyptic number.

It is an amenable number.

747870436016568 is an abundant number, since it is smaller than the sum of its proper divisors (1342961449758792).

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

747870436016568 is a wasteful number, since it uses less digits than its factorization.

747870436016568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812857 (or 1812850 counting only the distinct ones).

The product of its (nonzero) digits is 1137991680, while the sum is 72.

The spelling of 747870436016568 in words is "seven hundred forty-seven trillion, eight hundred seventy billion, four hundred thirty-six million, sixteen thousand, five hundred sixty-eight".