18898350000 has 360 divisors, whose sum is σ = 64587272400. Its totient is φ = 4760640000.

The previous prime is 18898349969. The next prime is 18898350007. The reversal of 18898350000 is 5389881.

It is not an unprimeable number, because it can be changed into a prime (18898350007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 54149826 + ... + 54150174.

It is an arithmetic number, because the mean of its divisors is an integer number (179409090).

Almost surely, 2^18898350000 is an apocalyptic number.

18898350000 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 18898350000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32293636200).

18898350000 is an abundant number, since it is smaller than the sum of its proper divisors (45688922400).

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

18898350000 is an equidigital number, since it uses as much as digits as its factorization.

18898350000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 18898350000 in words is "eighteen billion, eight hundred ninety-eight million, three hundred fifty thousand".