18091676417953 has 2 divisors, whose sum is σ = 18091676417954. Its totient is φ = 18091676417952.

The previous prime is 18091676417933. The next prime is 18091676418001. The reversal of 18091676417953 is 35971467619081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11596864943889 + 6494811474064 = 3405417^2 + 2548492^2 .

It is a cyclic number.

It is not a de Polignac number, because 18091676417953 - 2⁴¹ = 15892653162401 is a prime.

It is a super-2 number, since 2×18091676417953² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18091676417933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9045838208976 + 9045838208977.

It is an arithmetic number, because the mean of its divisors is an integer number (9045838208977).

Almost surely, 2^{18091676417953} is an apocalyptic number.

It is an amenable number.

18091676417953 is a deficient number, since it is larger than the sum of its proper divisors (1).

18091676417953 is an equidigital number, since it uses as much as digits as its factorization.

18091676417953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68584320, while the sum is 67.

The spelling of 18091676417953 in words is "eighteen trillion, ninety-one billion, six hundred seventy-six million, four hundred seventeen thousand, nine hundred fifty-three".