74390686896 has 40 divisors (see below), whose sum is σ = 192266386624. Its totient is φ = 24785225280.

The previous prime is 74390686883. The next prime is 74390686907. The reversal of 74390686896 is 69868609347.

It is a super-2 number, since 2×74390686896² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261346 + ... + 465921.

Almost surely, 2^74390686896 is an apocalyptic number.

It is an amenable number.

74390686896 is an abundant number, since it is smaller than the sum of its proper divisors (117875699728).

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

74390686896 is a wasteful number, since it uses less digits than its factorization.

74390686896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729409 (or 729403 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 74390686896 in words is "seventy-four billion, three hundred ninety million, six hundred eighty-six thousand, eight hundred ninety-six".