18299997000 has 192 divisors, whose sum is σ = 62050959360. Its totient is φ = 4864464000.

The previous prime is 18299996999. The next prime is 18299997007. The reversal of 18299997000 is 79999281.

It is not an unprimeable number, because it can be changed into a prime (18299997007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2975929 + ... + 2982071.

It is an arithmetic number, because the mean of its divisors is an integer number (323182080).

Almost surely, 2^18299997000 is an apocalyptic number.

18299997000 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 18299997000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31025479680).

18299997000 is an abundant number, since it is smaller than the sum of its proper divisors (43750962360).

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

18299997000 is a wasteful number, since it uses less digits than its factorization.

18299997000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6501 (or 6484 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The spelling of 18299997000 in words is "eighteen billion, two hundred ninety-nine million, nine hundred ninety-seven thousand".