18162319098 has 128 divisors (see below), whose sum is σ = 46323062784. Its totient is φ = 4610361600.

The previous prime is 18162319069. The next prime is 18162319139. The reversal of 18162319098 is 89091326181.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6928228 + ... + 6930848.

It is an arithmetic number, because the mean of its divisors is an integer number (361898928).

Almost surely, 2^18162319098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18162319098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23161531392).

18162319098 is an abundant number, since it is smaller than the sum of its proper divisors (28160743686).

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

18162319098 is a wasteful number, since it uses less digits than its factorization.

18162319098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980.

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 18162319098 in words is "eighteen billion, one hundred sixty-two million, three hundred nineteen thousand, ninety-eight".