74905991922 has 16 divisors (see below), whose sum is σ = 150817435200. Its totient is φ = 24801088752.

The previous prime is 74905991921. The next prime is 74905991929. The reversal of 74905991922 is 22919950947.

It is a super-2 number, since 2×74905991922² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74905991921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41892838 + ... + 41894625.

It is an arithmetic number, because the mean of its divisors is an integer number (9426089700).

Almost surely, 2^74905991922 is an apocalyptic number.

74905991922 is an abundant number, since it is smaller than the sum of its proper divisors (75911443278).

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

74905991922 is a wasteful number, since it uses less digits than its factorization.

74905991922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83787617.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The spelling of 74905991922 in words is "seventy-four billion, nine hundred five million, nine hundred ninety-one thousand, nine hundred twenty-two".