74406411818 has 32 divisors (see below), whose sum is σ = 119353441680. Its totient is φ = 34667274240.

The previous prime is 74406411817. The next prime is 74406411857. The reversal of 74406411818 is 81811460447.

It can be written as a sum of positive squares in 8 ways, for example, as 60332623129 + 14073788689 = 245627^2 + 118633^2 .

It is not an unprimeable number, because it can be changed into a prime (74406411817) 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, 1391318 + ... + 1443806.

Almost surely, 2^74406411818 is an apocalyptic number.

74406411818 is a deficient number, since it is larger than the sum of its proper divisors (44947029862).

74406411818 is a wasteful number, since it uses less digits than its factorization.

74406411818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52922.

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 74406411818 in words is "seventy-four billion, four hundred six million, four hundred eleven thousand, eight hundred eighteen".