18368537006 has 4 divisors (see below), whose sum is σ = 27552805512. Its totient is φ = 9184268502.

The previous prime is 18368536999. The next prime is 18368537027. The reversal of 18368537006 is 60073586381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4592134250 + ... + 4592134253.

It is an arithmetic number, because the mean of its divisors is an integer number (6888201378).

Almost surely, 2^18368537006 is an apocalyptic number.

18368537006 is a deficient number, since it is larger than the sum of its proper divisors (9184268506).

18368537006 is an equidigital number, since it uses as much as digits as its factorization.

18368537006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9184268505.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 18368537006 in words is "eighteen billion, three hundred sixty-eight million, five hundred thirty-seven thousand, six".