12945107091 has 16 divisors (see below), whose sum is σ = 20128448000. Its totient is φ = 7397203464.

The previous prime is 12945107047. The next prime is 12945107101. The reversal of 12945107091 is 19070154921.

It is not a de Polignac number, because 12945107091 - 2⁷ = 12945106963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12945107191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6289111 + ... + 6291168.

It is an arithmetic number, because the mean of its divisors is an integer number (1258028000).

Almost surely, 2^12945107091 is an apocalyptic number.

12945107091 is a deficient number, since it is larger than the sum of its proper divisors (7183340909).

12945107091 is an equidigital number, since it uses as much as digits as its factorization.

12945107091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12580303 (or 12580289 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 39.

The spelling of 12945107091 in words is "twelve billion, nine hundred forty-five million, one hundred seven thousand, ninety-one".