18792056022409 has 16 divisors (see below), whose sum is σ = 19285731158400. Its totient is φ = 18305906540416.

The previous prime is 18792056022379. The next prime is 18792056022419. The reversal of 18792056022409 is 90422065029781.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18792056022409 - 2¹³ = 18792056014217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18792056022409.

It is not an unprimeable number, because it can be changed into a prime (18792056022419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891154 + ... + 6195019.

It is an arithmetic number, because the mean of its divisors is an integer number (1205358197400).

Almost surely, 2^{18792056022409} is an apocalyptic number.

It is an amenable number.

18792056022409 is a deficient number, since it is larger than the sum of its proper divisors (493675135991).

18792056022409 is an equidigital number, since it uses as much as digits as its factorization.

18792056022409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086704.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 18792056022409 in words is "eighteen trillion, seven hundred ninety-two billion, fifty-six million, twenty-two thousand, four hundred nine".