74640677384 has 64 divisors (see below), whose sum is σ = 173772224640. Its totient is φ = 29266836480.

The previous prime is 74640677383. The next prime is 74640677453. The reversal of 74640677384 is 48377604647.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (74640677383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371402 + ... + 535929.

It is an arithmetic number, because the mean of its divisors is an integer number (2715191010).

Almost surely, 2^74640677384 is an apocalyptic number.

It is an amenable number.

74640677384 is an abundant number, since it is smaller than the sum of its proper divisors (99131547256).

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

74640677384 is a wasteful number, since it uses less digits than its factorization.

74640677384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907470 (or 907466 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 56.

The spelling of 74640677384 in words is "seventy-four billion, six hundred forty million, six hundred seventy-seven thousand, three hundred eighty-four".