18090004793 has 32 divisors (see below), whose sum is σ = 22385922048. Its totient is φ = 14264121600.

The previous prime is 18090004783. The next prime is 18090004799. The reversal of 18090004793 is 39740009081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18090004793 - 2²⁰ = 18088956217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18090004793.

It is not an unprimeable number, because it can be changed into a prime (18090004799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5429138 + ... + 5432468.

It is an arithmetic number, because the mean of its divisors is an integer number (699560064).

Almost surely, 2^18090004793 is an apocalyptic number.

It is an amenable number.

18090004793 is a deficient number, since it is larger than the sum of its proper divisors (4295917255).

18090004793 is a wasteful number, since it uses less digits than its factorization.

18090004793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 18090004793 in words is "eighteen billion, ninety million, four thousand, seven hundred ninety-three".