18001982802 has 16 divisors (see below), whose sum is σ = 36005516352. Its totient is φ = 6000402480.

The previous prime is 18001982777. The next prime is 18001982821. The reversal of 18001982802 is 20828910081.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132603 + ... + 231489.

It is an arithmetic number, because the mean of its divisors is an integer number (2250344772).

Almost surely, 2^18001982802 is an apocalyptic number.

18001982802 is an abundant number, since it is smaller than the sum of its proper divisors (18003533550).

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

18001982802 is a wasteful number, since it uses less digits than its factorization.

18001982802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129233.

The product of its (nonzero) digits is 18432, while the sum is 39.

The spelling of 18001982802 in words is "eighteen billion, one million, nine hundred eighty-two thousand, eight hundred two".