18539236006 has 16 divisors (see below), whose sum is σ = 28070333280. Its totient is φ = 9182496960.

The previous prime is 18539235941. The next prime is 18539236007. The reversal of 18539236006 is 60063293581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18539236007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1491690 + ... + 1504066.

It is an arithmetic number, because the mean of its divisors is an integer number (1754395830).

Almost surely, 2^18539236006 is an apocalyptic number.

18539236006 is a deficient number, since it is larger than the sum of its proper divisors (9531097274).

18539236006 is a wasteful number, since it uses less digits than its factorization.

18539236006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19359.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 18539236006 in words is "eighteen billion, five hundred thirty-nine million, two hundred thirty-six thousand, six".