74888253666 has 12 divisors (see below), whose sum is σ = 162257882982. Its totient is φ = 24962751216.

The previous prime is 74888253659. The next prime is 74888253701. The reversal of 74888253666 is 66635288847.

It can be written as a sum of positive squares in only one way, i.e., 73375432641 + 1512821025 = 270879^2 + 38895^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2080229251 + ... + 2080229286.

Almost surely, 2^74888253666 is an apocalyptic number.

74888253666 is an abundant number, since it is smaller than the sum of its proper divisors (87369629316).

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

74888253666 is a wasteful number, since it uses less digits than its factorization.

74888253666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160458545 (or 4160458542 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 63.

The spelling of 74888253666 in words is "seventy-four billion, eight hundred eighty-eight million, two hundred fifty-three thousand, six hundred sixty-six".