18202182004 has 12 divisors (see below), whose sum is σ = 31855627300. Its totient is φ = 9100574208.

The previous prime is 18202181989. The next prime is 18202182023. The reversal of 18202182004 is 40028120281.

It can be written as a sum of positive squares in 2 ways, for example, as 9167679504 + 9034502500 = 95748^2 + 95050^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43659 + ... + 195730.

Almost surely, 2^18202182004 is an apocalyptic number.

It is an amenable number.

18202182004 is a deficient number, since it is larger than the sum of its proper divisors (13653445296).

18202182004 is a wasteful number, since it uses less digits than its factorization.

18202182004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258402 (or 258400 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The spelling of 18202182004 in words is "eighteen billion, two hundred two million, one hundred eighty-two thousand, four".