18799830000 has 1000 divisors, whose sum is σ = 81378013200. Its totient is φ = 4148928000.

The previous prime is 18799829977. The next prime is 18799830011. The reversal of 18799830000 is 3899781.

It is a tau number, because it is divible by the number of its divisors (1000).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 648269986 + ... + 648270014.

Almost surely, 2^18799830000 is an apocalyptic number.

18799830000 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 18799830000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40689006600).

18799830000 is an abundant number, since it is smaller than the sum of its proper divisors (62578183200).

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

18799830000 is an frugal number, since it uses more digits than its factorization.

18799830000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 18799830000 in words is "eighteen billion, seven hundred ninety-nine million, eight hundred thirty thousand".