74866574717 has 16 divisors (see below), whose sum is σ = 83568758400. Its totient is φ = 66495393600.

The previous prime is 74866574677. The next prime is 74866574773. The reversal of 74866574717 is 71747566847.

It is a cyclic number.

It is not a de Polignac number, because 74866574717 - 2¹⁶ = 74866509181 is a prime.

It is a super-2 number, since 2×74866574717² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74866574717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74866574777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274433 + ... + 474390.

It is an arithmetic number, because the mean of its divisors is an integer number (5223047400).

Almost surely, 2^74866574717 is an apocalyptic number.

It is an amenable number.

74866574717 is a deficient number, since it is larger than the sum of its proper divisors (8702183683).

74866574717 is a wasteful number, since it uses less digits than its factorization.

74866574717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749044.

The product of its digits is 55319040, while the sum is 62.

The spelling of 74866574717 in words is "seventy-four billion, eight hundred sixty-six million, five hundred seventy-four thousand, seven hundred seventeen".