18946718360 has 32 divisors (see below), whose sum is σ = 42844356000. Its totient is φ = 7540600320.

The previous prime is 18946718327. The next prime is 18946718363. The reversal of 18946718360 is 6381764981.

It is a super-2 number, since 2×18946718360² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18946718363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182161 + ... + 1198080.

It is an arithmetic number, because the mean of its divisors is an integer number (1338886125).

Almost surely, 2^18946718360 is an apocalyptic number.

18946718360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18946718360 is an abundant number, since it is smaller than the sum of its proper divisors (23897637640).

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

18946718360 is a wasteful number, since it uses less digits than its factorization.

18946718360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380451 (or 2380447 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 18946718360 in words is "eighteen billion, nine hundred forty-six million, seven hundred eighteen thousand, three hundred sixty".