18139343267 has 2 divisors, whose sum is σ = 18139343268. Its totient is φ = 18139343266.

The previous prime is 18139343221. The next prime is 18139343273. The reversal of 18139343267 is 76234393181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18139343267 - 2²⁴ = 18122566051 is a prime.

It is not a weakly prime, because it can be changed into another prime (18139343207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9069671633 + 9069671634.

It is an arithmetic number, because the mean of its divisors is an integer number (9069671634).

Almost surely, 2^18139343267 is an apocalyptic number.

18139343267 is a deficient number, since it is larger than the sum of its proper divisors (1).

18139343267 is an equidigital number, since it uses as much as digits as its factorization.

18139343267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The spelling of 18139343267 in words is "eighteen billion, one hundred thirty-nine million, three hundred forty-three thousand, two hundred sixty-seven".