18091677323 has 2 divisors, whose sum is σ = 18091677324. Its totient is φ = 18091677322.

The previous prime is 18091677281. The next prime is 18091677337. The reversal of 18091677323 is 32377619081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18091677323 - 2⁶ = 18091677259 is a prime.

It is not a weakly prime, because it can be changed into another prime (18091607323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9045838661 + 9045838662.

It is an arithmetic number, because the mean of its divisors is an integer number (9045838662).

Almost surely, 2^18091677323 is an apocalyptic number.

18091677323 is a deficient number, since it is larger than the sum of its proper divisors (1).

18091677323 is an equidigital number, since it uses as much as digits as its factorization.

18091677323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 18091677323 in words is "eighteen billion, ninety-one million, six hundred seventy-seven thousand, three hundred twenty-three".