18852957216 has 144 divisors (see below), whose sum is σ = 56047432896. Its totient is φ = 5999989248.

The previous prime is 18852957209. The next prime is 18852957223. The reversal of 18852957216 is 61275925881.

18852957216 is a `hidden beast` number, since 1 + 8 + 8 + 52 + 9 + 572 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (18852957209) and next prime (18852957223).

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

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, 4058191 + ... + 4062833.

It is an arithmetic number, because the mean of its divisors is an integer number (389218284).

Almost surely, 2^18852957216 is an apocalyptic number.

18852957216 is a gapful number since it is divisible by the number (16) 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 18852957216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28023716448).

18852957216 is an abundant number, since it is smaller than the sum of its proper divisors (37194475680).

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

18852957216 is a wasteful number, since it uses less digits than its factorization.

18852957216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5295 (or 5284 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The spelling of 18852957216 in words is "eighteen billion, eight hundred fifty-two million, nine hundred fifty-seven thousand, two hundred sixteen".