18348117514061 has 2 divisors, whose sum is σ = 18348117514062. Its totient is φ = 18348117514060.

The previous prime is 18348117514007. The next prime is 18348117514099. The reversal of 18348117514061 is 16041571184381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17448114284836 + 900003229225 = 4177094^2 + 948685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18348117514061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18348117514361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9174058757030 + 9174058757031.

It is an arithmetic number, because the mean of its divisors is an integer number (9174058757031).

Almost surely, 2^{18348117514061} is an apocalyptic number.

It is an amenable number.

18348117514061 is a deficient number, since it is larger than the sum of its proper divisors (1).

18348117514061 is an equidigital number, since it uses as much as digits as its factorization.

18348117514061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 50.

The spelling of 18348117514061 in words is "eighteen trillion, three hundred forty-eight billion, one hundred seventeen million, five hundred fourteen thousand, sixty-one".