13108799993 has 2 divisors, whose sum is σ = 13108799994. Its totient is φ = 13108799992.

The previous prime is 13108799987. The next prime is 13108800007. The reversal of 13108799993 is 39999780131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12099340009 + 1009459984 = 109997^2 + 31772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13108799993 is a prime.

It is a super-3 number, since 3×13108799993³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13108799923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6554399996 + 6554399997.

It is an arithmetic number, because the mean of its divisors is an integer number (6554399997).

Almost surely, 2^13108799993 is an apocalyptic number.

It is an amenable number.

13108799993 is a deficient number, since it is larger than the sum of its proper divisors (1).

13108799993 is an equidigital number, since it uses as much as digits as its factorization.

13108799993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 59.

The spelling of 13108799993 in words is "thirteen billion, one hundred eight million, seven hundred ninety-nine thousand, nine hundred ninety-three".