18374729100 has 288 divisors, whose sum is σ = 67205031936. Its totient is φ = 3771878400.

The previous prime is 18374729081. The next prime is 18374729117. The reversal of 18374729100 is 192747381.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1001005 + ... + 1019195.

Almost surely, 2^18374729100 is an apocalyptic number.

18374729100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18374729100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33602515968).

18374729100 is an abundant number, since it is smaller than the sum of its proper divisors (48830302836).

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

18374729100 is a wasteful number, since it uses less digits than its factorization.

18374729100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18265 (or 18258 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 18374729100 in words is "eighteen billion, three hundred seventy-four million, seven hundred twenty-nine thousand, one hundred".