18046392144 has 80 divisors (see below), whose sum is σ = 51139268544. Its totient is φ = 5438361600.

The previous prime is 18046392137. The next prime is 18046392151. The reversal of 18046392144 is 44129364081.

It is an interprime number because it is at equal distance from previous prime (18046392137) and next prime (18046392151).

It is a junction number, because it is equal to n+sod(n) for n = 18046392096 and 18046392105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152 + ... + 189984.

Almost surely, 2^18046392144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18046392144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25569634272).

18046392144 is an abundant number, since it is smaller than the sum of its proper divisors (33092876400).

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

18046392144 is a wasteful number, since it uses less digits than its factorization.

18046392144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189036 (or 189030 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 18046392144 in words is "eighteen billion, forty-six million, three hundred ninety-two thousand, one hundred forty-four".