74687424684 has 144 divisors (see below), whose sum is σ = 183282188544. Its totient is φ = 23667949440.

The previous prime is 74687424619. The next prime is 74687424697. The reversal of 74687424684 is 48642478647.

It is a super-2 number, since 2×74687424684² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269629554 + ... + 269629830.

It is an arithmetic number, because the mean of its divisors is an integer number (1272792976).

Almost surely, 2^74687424684 is an apocalyptic number.

It is an amenable number.

74687424684 is an abundant number, since it is smaller than the sum of its proper divisors (108594763860).

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

74687424684 is a wasteful number, since it uses less digits than its factorization.

74687424684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 643 counting only the distinct ones).

The product of its digits is 57802752, while the sum is 60.

The spelling of 74687424684 in words is "seventy-four billion, six hundred eighty-seven million, four hundred twenty-four thousand, six hundred eighty-four".