74068235631 has 24 divisors (see below), whose sum is σ = 117106074176. Its totient is φ = 44833227840.

The previous prime is 74068235603. The next prime is 74068235651. The reversal of 74068235631 is 13653286047.

74068235631 is a `hidden beast` number, since 7 + 4 + 0 + 6 + 8 + 2 + 3 + 5 + 631 = 666.

It is not a de Polignac number, because 74068235631 - 2⁵ = 74068235599 is a prime.

It is a super-2 number, since 2×74068235631² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74068235651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5181895 + ... + 5196168.

Almost surely, 2^74068235631 is an apocalyptic number.

74068235631 is a deficient number, since it is larger than the sum of its proper divisors (43037838545).

74068235631 is a wasteful number, since it uses less digits than its factorization.

74068235631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10378143 (or 10378140 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 74068235631 in words is "seventy-four billion, sixty-eight million, two hundred thirty-five thousand, six hundred thirty-one".