12663899093 has 2 divisors, whose sum is σ = 12663899094. Its totient is φ = 12663899092.

The previous prime is 12663899081. The next prime is 12663899099. The reversal of 12663899093 is 39099836621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12646576849 + 17322244 = 112457^2 + 4162^2 .

It is a cyclic number.

It is not a de Polignac number, because 12663899093 - 2¹⁸ = 12663636949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12663899099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331949546 + 6331949547.

It is an arithmetic number, because the mean of its divisors is an integer number (6331949547).

Almost surely, 2^12663899093 is an apocalyptic number.

It is an amenable number.

12663899093 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663899093 is an equidigital number, since it uses as much as digits as its factorization.

12663899093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 12663899093 in words is "twelve billion, six hundred sixty-three million, eight hundred ninety-nine thousand, ninety-three".