18276481198123 has 2 divisors, whose sum is σ = 18276481198124. Its totient is φ = 18276481198122.

The previous prime is 18276481198043. The next prime is 18276481198163. The reversal of 18276481198123 is 32189118467281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18276481198123 - 2²⁹ = 18275944327211 is a prime.

It is not a weakly prime, because it can be changed into another prime (18276481198163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9138240599061 + 9138240599062.

It is an arithmetic number, because the mean of its divisors is an integer number (9138240599062).

Almost surely, 2^{18276481198123} is an apocalyptic number.

18276481198123 is a deficient number, since it is larger than the sum of its proper divisors (1).

18276481198123 is an equidigital number, since it uses as much as digits as its factorization.

18276481198123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 61.

The spelling of 18276481198123 in words is "eighteen trillion, two hundred seventy-six billion, four hundred eighty-one million, one hundred ninety-eight thousand, one hundred twenty-three".