74683643712 has 224 divisors, whose sum is σ = 211281702912. Its totient is φ = 23227877376.

The previous prime is 74683643693. The next prime is 74683643737. The reversal of 74683643712 is 21734638647.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121832718 + ... + 121833330.

It is an arithmetic number, because the mean of its divisors is an integer number (943221888).

Almost surely, 2^74683643712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74683643712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105640851456).

74683643712 is an abundant number, since it is smaller than the sum of its proper divisors (136598059200).

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

74683643712 is a wasteful number, since it uses less digits than its factorization.

74683643712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1275 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 51.

The spelling of 74683643712 in words is "seventy-four billion, six hundred eighty-three million, six hundred forty-three thousand, seven hundred twelve".