18076316177 has 2 divisors, whose sum is σ = 18076316178. Its totient is φ = 18076316176.

The previous prime is 18076316173. The next prime is 18076316179. The reversal of 18076316177 is 77161367081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16509423121 + 1566893056 = 128489^2 + 39584^2 .

It is a cyclic number.

It is not a de Polignac number, because 18076316177 - 2² = 18076316173 is a prime.

Together with 18076316179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18076316173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9038158088 + 9038158089.

It is an arithmetic number, because the mean of its divisors is an integer number (9038158089).

Almost surely, 2^18076316177 is an apocalyptic number.

It is an amenable number.

18076316177 is a deficient number, since it is larger than the sum of its proper divisors (1).

18076316177 is an equidigital number, since it uses as much as digits as its factorization.

18076316177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 18076316177 in words is "eighteen billion, seventy-six million, three hundred sixteen thousand, one hundred seventy-seven".