18852154888 has 64 divisors (see below), whose sum is σ = 41086656000. Its totient is φ = 7942551552.

The previous prime is 18852154883. The next prime is 18852154889. The reversal of 18852154888 is 88845125881.

It is a happy number.

It is a super-2 number, since 2×18852154888² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18852154883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021648 + ... + 1039936.

It is an arithmetic number, because the mean of its divisors is an integer number (641979000).

Almost surely, 2^18852154888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18852154888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20543328000).

18852154888 is an abundant number, since it is smaller than the sum of its proper divisors (22234501112).

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

18852154888 is a wasteful number, since it uses less digits than its factorization.

18852154888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614 (or 18610 counting only the distinct ones).

The product of its digits is 6553600, while the sum is 58.

The spelling of 18852154888 in words is "eighteen billion, eight hundred fifty-two million, one hundred fifty-four thousand, eight hundred eighty-eight".