18806989770912 has 384 divisors, whose sum is σ = 61262179614720. Its totient is φ = 4930068971520.

The previous prime is 18806989770869. The next prime is 18806989770917. The reversal of 18806989770912 is 21907798960881.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18806989770917) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72057993 + ... + 72318519.

It is an arithmetic number, because the mean of its divisors is an integer number (159536926080).

Almost surely, 2^{18806989770912} is an apocalyptic number.

18806989770912 is a gapful number since it is divisible by the number (12) 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 18806989770912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30631089807360).

18806989770912 is an abundant number, since it is smaller than the sum of its proper divisors (42455189843808).

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

18806989770912 is a wasteful number, since it uses less digits than its factorization.

18806989770912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260724 (or 260716 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 75.

The spelling of 18806989770912 in words is "eighteen trillion, eight hundred six billion, nine hundred eighty-nine million, seven hundred seventy thousand, nine hundred twelve".