74418934942881 has 27 divisors (see below), whose sum is σ = 108097992074163. Its totient is φ = 49335414813360.

The previous prime is 74418934942873. The next prime is 74418934942889. The reversal of 74418934942881 is 18824943981447.

The square root of 74418934942881 is 8626641.

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

74418934942881 is a `hidden beast` number, since 7 + 4 + 4 + 1 + 89 + 3 + 49 + 428 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (74418934942873) and next prime (74418934942889).

It can be written as a sum of positive squares in only one way, i.e., 820037102481 + 73598897840400 = 905559^2 + 8578980^2 .

It is not a de Polignac number, because 74418934942881 - 2³ = 74418934942873 is a prime.

It is a super-2 number, since 2×74418934942881² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74418934942889) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4684258120 + ... + 4684274006.

Almost surely, 2^{74418934942881} is an apocalyptic number.

74418934942881 is the 8626641-st square number.

74418934942881 is the 4313321-st centered octagonal number.

It is an amenable number.

74418934942881 is a deficient number, since it is larger than the sum of its proper divisors (33679057131282).

74418934942881 is an frugal number, since it uses more digits than its factorization.

74418934942881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32142 (or 16071 counting only the distinct ones).

The product of its digits is 445906944, while the sum is 72.

The spelling of 74418934942881 in words is "seventy-four trillion, four hundred eighteen billion, nine hundred thirty-four million, nine hundred forty-two thousand, eight hundred eighty-one".