74733664671 has 12 divisors (see below), whose sum is σ = 108636199672. Its totient is φ = 49505101776.

The previous prime is 74733664639. The next prime is 74733664693. The reversal of 74733664671 is 17646633747.

74733664671 is a `hidden beast` number, since 7 + 473 + 3 + 66 + 46 + 71 = 666.

It is not a de Polignac number, because 74733664671 - 2⁵ = 74733664639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74733664771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26443621 + ... + 26446446.

Almost surely, 2^74733664671 is an apocalyptic number.

74733664671 is a deficient number, since it is larger than the sum of its proper divisors (33902535001).

74733664671 is a wasteful number, since it uses less digits than its factorization.

74733664671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52890230 (or 52890227 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 54.

The spelling of 74733664671 in words is "seventy-four billion, seven hundred thirty-three million, six hundred sixty-four thousand, six hundred seventy-one".