18425000177 has 2 divisors, whose sum is σ = 18425000178. Its totient is φ = 18425000176.

The previous prime is 18425000119. The next prime is 18425000179. The reversal of 18425000177 is 77100052481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18421004176 + 3996001 = 135724^2 + 1999^2 .

It is a cyclic number.

It is not a de Polignac number, because 18425000177 - 2⁸ = 18424999921 is a prime.

Together with 18425000179, 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 (18425000179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9212500088 + 9212500089.

It is an arithmetic number, because the mean of its divisors is an integer number (9212500089).

Almost surely, 2^18425000177 is an apocalyptic number.

It is an amenable number.

18425000177 is a deficient number, since it is larger than the sum of its proper divisors (1).

18425000177 is an equidigital number, since it uses as much as digits as its factorization.

18425000177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 35.

The spelling of 18425000177 in words is "eighteen billion, four hundred twenty-five million, one hundred seventy-seven", and thus it is an aban number.