18797048713 has 2 divisors, whose sum is σ = 18797048714. Its totient is φ = 18797048712.

The previous prime is 18797048663. The next prime is 18797048717. The reversal of 18797048713 is 31784079781.

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., 12636682569 + 6160366144 = 112413^2 + 78488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18797048713 is a prime.

It is not a weakly prime, because it can be changed into another prime (18797048717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9398524356 + 9398524357.

It is an arithmetic number, because the mean of its divisors is an integer number (9398524357).

Almost surely, 2^18797048713 is an apocalyptic number.

It is an amenable number.

18797048713 is a deficient number, since it is larger than the sum of its proper divisors (1).

18797048713 is an equidigital number, since it uses as much as digits as its factorization.

18797048713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 18797048713 in words is "eighteen billion, seven hundred ninety-seven million, forty-eight thousand, seven hundred thirteen".