74209993100 has 36 divisors (see below), whose sum is σ = 161052452400. Its totient is φ = 29680906560.

The previous prime is 74209993061. The next prime is 74209993103. The reversal of 74209993100 is 139990247.

It is a super-2 number, since 2×74209993100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74209993103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090886 + ... + 1156914.

Almost surely, 2^74209993100 is an apocalyptic number.

It is an amenable number.

74209993100 is an abundant number, since it is smaller than the sum of its proper divisors (86842459300).

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

74209993100 is a wasteful number, since it uses less digits than its factorization.

74209993100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77282 (or 77275 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 74209993100 in words is "seventy-four billion, two hundred nine million, nine hundred ninety-three thousand, one hundred".