12659380091 has 2 divisors, whose sum is σ = 12659380092. Its totient is φ = 12659380090.

The previous prime is 12659380073. The next prime is 12659380163. The reversal of 12659380091 is 19008395621.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19008395621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12659380091 - 2²⁶ = 12592271227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12659380061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6329690045 + 6329690046.

It is an arithmetic number, because the mean of its divisors is an integer number (6329690046).

Almost surely, 2^12659380091 is an apocalyptic number.

12659380091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12659380091 is an equidigital number, since it uses as much as digits as its factorization.

12659380091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 12659380091 in words is "twelve billion, six hundred fifty-nine million, three hundred eighty thousand, ninety-one".