18851846216 has 32 divisors (see below), whose sum is σ = 40404890880. Its totient is φ = 8077747200.

The previous prime is 18851846197. The next prime is 18851846257. The reversal of 18851846216 is 61264815881.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273761 + ... + 335631.

It is an arithmetic number, because the mean of its divisors is an integer number (1262652840).

Almost surely, 2^18851846216 is an apocalyptic number.

It is an amenable number.

18851846216 is an abundant number, since it is smaller than the sum of its proper divisors (21553044664).

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

18851846216 is a wasteful number, since it uses less digits than its factorization.

18851846216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67325 (or 67321 counting only the distinct ones).

The product of its digits is 737280, while the sum is 50.

The spelling of 18851846216 in words is "eighteen billion, eight hundred fifty-one million, eight hundred forty-six thousand, two hundred sixteen".