18370020002 has 24 divisors (see below), whose sum is σ = 29181215196. Its totient is φ = 8671790304.

The previous prime is 18370019977. The next prime is 18370020013. The reversal of 18370020002 is 20002007381.

It can be written as a sum of positive squares in 2 ways, for example, as 15247557361 + 3122462641 = 123481^2 + 55879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18370020002.

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 11 ways as a sum of consecutive naturals, for example, 168128 + ... + 254964.

Almost surely, 2^18370020002 is an apocalyptic number.

18370020002 is a deficient number, since it is larger than the sum of its proper divisors (10811195194).

18370020002 is a wasteful number, since it uses less digits than its factorization.

18370020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87170 (or 87151 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 18370020002 its reverse (20002007381), we get a palindrome (38372027383).

The spelling of 18370020002 in words is "eighteen billion, three hundred seventy million, twenty thousand, two".