13399099897 has 2 divisors, whose sum is σ = 13399099898. Its totient is φ = 13399099896.

The previous prime is 13399099867. The next prime is 13399099993. The reversal of 13399099897 is 79899099331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13283945536 + 115154361 = 115256^2 + 10731^2 .

It is a cyclic number.

It is not a de Polignac number, because 13399099897 - 2¹⁹ = 13398575609 is a prime.

It is not a weakly prime, because it can be changed into another prime (13399099807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6699549948 + 6699549949.

It is an arithmetic number, because the mean of its divisors is an integer number (6699549949).

Almost surely, 2^13399099897 is an apocalyptic number.

It is an amenable number.

13399099897 is a deficient number, since it is larger than the sum of its proper divisors (1).

13399099897 is an equidigital number, since it uses as much as digits as its factorization.

13399099897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29760696, while the sum is 67.

The spelling of 13399099897 in words is "thirteen billion, three hundred ninety-nine million, ninety-nine thousand, eight hundred ninety-seven".