18097345841 has 2 divisors, whose sum is σ = 18097345842. Its totient is φ = 18097345840.

The previous prime is 18097345793. The next prime is 18097345843. The reversal of 18097345841 is 14854379081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12836890000 + 5260455841 = 113300^2 + 72529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18097345841 is a prime.

Together with 18097345843, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18097345841.

It is not a weakly prime, because it can be changed into another prime (18097345843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9048672920 + 9048672921.

It is an arithmetic number, because the mean of its divisors is an integer number (9048672921).

Almost surely, 2^18097345841 is an apocalyptic number.

It is an amenable number.

18097345841 is a deficient number, since it is larger than the sum of its proper divisors (1).

18097345841 is an equidigital number, since it uses as much as digits as its factorization.

18097345841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 18097345841 in words is "eighteen billion, ninety-seven million, three hundred forty-five thousand, eight hundred forty-one".