18469928160 has 144 divisors (see below), whose sum is σ = 63067062240. Its totient is φ = 4922311680.

The previous prime is 18469928149. The next prime is 18469928179. The reversal of 18469928160 is 6182996481.

18469928160 is a `hidden beast` number, since 18 + 469 + 9 + 2 + 8 + 160 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×18469928160² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18469928097 and 18469928106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3368301 + ... + 3373779.

It is an arithmetic number, because the mean of its divisors is an integer number (437965710).

Almost surely, 2^18469928160 is an apocalyptic number.

18469928160 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 18469928160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31533531120).

18469928160 is an abundant number, since it is smaller than the sum of its proper divisors (44597134080).

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

18469928160 is a wasteful number, since it uses less digits than its factorization.

18469928160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841 (or 7830 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 18469928160 in words is "eighteen billion, four hundred sixty-nine million, nine hundred twenty-eight thousand, one hundred sixty".