18562000117 has 2 divisors, whose sum is σ = 18562000118. Its totient is φ = 18562000116.

The previous prime is 18562000099. The next prime is 18562000139. The reversal of 18562000117 is 71100026581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18185601316 + 376398801 = 134854^2 + 19401^2 .

It is a cyclic number.

It is not a de Polignac number, because 18562000117 - 2²³ = 18553611509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18562009117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9281000058 + 9281000059.

It is an arithmetic number, because the mean of its divisors is an integer number (9281000059).

Almost surely, 2^18562000117 is an apocalyptic number.

It is an amenable number.

18562000117 is a deficient number, since it is larger than the sum of its proper divisors (1).

18562000117 is an equidigital number, since it uses as much as digits as its factorization.

18562000117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 31.

Adding to 18562000117 its reverse (71100026581), we get a palindrome (89662026698).

The spelling of 18562000117 in words is "eighteen billion, five hundred sixty-two million, one hundred seventeen", and thus it is an aban number.