13818395089 has 2 divisors, whose sum is σ = 13818395090. Its totient is φ = 13818395088.

The previous prime is 13818395083. The next prime is 13818395159. The reversal of 13818395089 is 98059381831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13804370064 + 14025025 = 117492^2 + 3745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13818395089 is a prime.

It is not a weakly prime, because it can be changed into another prime (13818395083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6909197544 + 6909197545.

It is an arithmetic number, because the mean of its divisors is an integer number (6909197545).

Almost surely, 2^13818395089 is an apocalyptic number.

It is an amenable number.

13818395089 is a deficient number, since it is larger than the sum of its proper divisors (1).

13818395089 is an equidigital number, since it uses as much as digits as its factorization.

13818395089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 13818395089 in words is "thirteen billion, eight hundred eighteen million, three hundred ninety-five thousand, eighty-nine".