74474636898 has 32 divisors (see below), whose sum is σ = 157926312576. Its totient is φ = 23332693248.

The previous prime is 74474636843. The next prime is 74474636947. The reversal of 74474636898 is 89863647447.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423286 + ... + 572817.

It is an arithmetic number, because the mean of its divisors is an integer number (4935197268).

Almost surely, 2^74474636898 is an apocalyptic number.

74474636898 is an abundant number, since it is smaller than the sum of its proper divisors (83451675678).

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

74474636898 is a wasteful number, since it uses less digits than its factorization.

74474636898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996858.

The product of its digits is 195084288, while the sum is 66.

The spelling of 74474636898 in words is "seventy-four billion, four hundred seventy-four million, six hundred thirty-six thousand, eight hundred ninety-eight".