18019599210 has 96 divisors (see below), whose sum is σ = 48506739840. Its totient is φ = 4635679104.

The previous prime is 18019599193. The next prime is 18019599211. The reversal of 18019599210 is 1299591081.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (18019599211) 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, 4495027 + ... + 4499033.

It is an arithmetic number, because the mean of its divisors is an integer number (505278540).

Almost surely, 2^18019599210 is an apocalyptic number.

18019599210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18019599210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24253369920).

18019599210 is an abundant number, since it is smaller than the sum of its proper divisors (30487140630).

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

18019599210 is a wasteful number, since it uses less digits than its factorization.

18019599210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772 (or 5769 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The spelling of 18019599210 in words is "eighteen billion, nineteen million, five hundred ninety-nine thousand, two hundred ten".