74451488164 has 9 divisors (see below), whose sum is σ = 130291059297. Its totient is φ = 37225471224.

The previous prime is 74451488149. The next prime is 74451488191. The reversal of 74451488164 is 46188415447.

The square root of 74451488164 is 272858.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 53472862564 + 20978625600 = 231242^2 + 144840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 477502 + ... + 613930.

Almost surely, 2^74451488164 is an apocalyptic number.

74451488164 is the 272858-th square number.

It is an amenable number.

74451488164 is a deficient number, since it is larger than the sum of its proper divisors (55839571133).

74451488164 is an frugal number, since it uses more digits than its factorization.

74451488164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272862 (or 136431 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The spelling of 74451488164 in words is "seventy-four billion, four hundred fifty-one million, four hundred eighty-eight thousand, one hundred sixty-four".