18843886802 has 32 divisors (see below), whose sum is σ = 31048012800. Its totient is φ = 8523852480.

The previous prime is 18843886783. The next prime is 18843886807. The reversal of 18843886802 is 20868834881.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18843886807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1358699 + ... + 1372497.

It is an arithmetic number, because the mean of its divisors is an integer number (970250400).

Almost surely, 2^18843886802 is an apocalyptic number.

18843886802 is a deficient number, since it is larger than the sum of its proper divisors (12204125998).

18843886802 is a wasteful number, since it uses less digits than its factorization.

18843886802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14858.

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 18843886802 in words is "eighteen billion, eight hundred forty-three million, eight hundred eighty-six thousand, eight hundred two".