18852961855 has 16 divisors (see below), whose sum is σ = 27844375104. Its totient is φ = 11933303040.

The previous prime is 18852961849. The next prime is 18852961867. The reversal of 18852961855 is 55816925881.

It is not a de Polignac number, because 18852961855 - 2³ = 18852961847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18852961855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20717086 + ... + 20717995.

It is an arithmetic number, because the mean of its divisors is an integer number (1740273444).

Almost surely, 2^18852961855 is an apocalyptic number.

18852961855 is a deficient number, since it is larger than the sum of its proper divisors (8991413249).

18852961855 is a wasteful number, since it uses less digits than its factorization.

18852961855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41435106.

The product of its digits is 6912000, while the sum is 58.

The spelling of 18852961855 in words is "eighteen billion, eight hundred fifty-two million, nine hundred sixty-one thousand, eight hundred fifty-five".