18039122207 has 2 divisors, whose sum is σ = 18039122208. Its totient is φ = 18039122206.

The previous prime is 18039122173. The next prime is 18039122243. The reversal of 18039122207 is 70222193081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18039122207 - 2²⁶ = 17972013343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18039121207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9019561103 + 9019561104.

It is an arithmetic number, because the mean of its divisors is an integer number (9019561104).

Almost surely, 2^18039122207 is an apocalyptic number.

18039122207 is a deficient number, since it is larger than the sum of its proper divisors (1).

18039122207 is an equidigital number, since it uses as much as digits as its factorization.

18039122207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 18039122207 in words is "eighteen billion, thirty-nine million, one hundred twenty-two thousand, two hundred seven".