18520187002 has 16 divisors (see below), whose sum is σ = 28745733600. Its totient is φ = 8938442800.

The previous prime is 18520186999. The next prime is 18520187069. The reversal of 18520187002 is 20078102581.

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, 193377 + ... + 272827.

It is an arithmetic number, because the mean of its divisors is an integer number (1796608350).

Almost surely, 2^18520187002 is an apocalyptic number.

18520187002 is a deficient number, since it is larger than the sum of its proper divisors (10225546598).

18520187002 is a wasteful number, since it uses less digits than its factorization.

18520187002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83501.

The product of its (nonzero) digits is 8960, while the sum is 34.

Adding to 18520187002 its reverse (20078102581), we get a palindrome (38598289583).

The spelling of 18520187002 in words is "eighteen billion, five hundred twenty million, one hundred eighty-seven thousand, two".