18805714512 has 240 divisors, whose sum is σ = 57019350528. Its totient is φ = 5303024640.

The previous prime is 18805714489. The next prime is 18805714537. The reversal of 18805714512 is 21541750881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6981838 + ... + 6984530.

Almost surely, 2^18805714512 is an apocalyptic number.

18805714512 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 18805714512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28509675264).

18805714512 is an abundant number, since it is smaller than the sum of its proper divisors (38213636016).

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

18805714512 is a wasteful number, since it uses less digits than its factorization.

18805714512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 42.

The spelling of 18805714512 in words is "eighteen billion, eight hundred five million, seven hundred fourteen thousand, five hundred twelve".