18047990006 has 8 divisors (see below), whose sum is σ = 27945274944. Its totient is φ = 8732898360.

The previous prime is 18047990003. The next prime is 18047990017. The reversal of 18047990006 is 60009974081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18047990003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145548245 + ... + 145548368.

It is an arithmetic number, because the mean of its divisors is an integer number (3493159368).

Almost surely, 2^18047990006 is an apocalyptic number.

18047990006 is a deficient number, since it is larger than the sum of its proper divisors (9897284938).

18047990006 is a wasteful number, since it uses less digits than its factorization.

18047990006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291096646.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 18047990006 in words is "eighteen billion, forty-seven million, nine hundred ninety thousand, six".