12906245971 has 2 divisors, whose sum is σ = 12906245972. Its totient is φ = 12906245970.

The previous prime is 12906245959. The next prime is 12906245993. The reversal of 12906245971 is 17954260921.

It is a weak prime.

It is an emirp because it is prime and its reverse (17954260921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12906245971 - 2⁵ = 12906245939 is a prime.

It is not a weakly prime, because it can be changed into another prime (12906245071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6453122985 + 6453122986.

It is an arithmetic number, because the mean of its divisors is an integer number (6453122986).

Almost surely, 2^12906245971 is an apocalyptic number.

12906245971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12906245971 is an equidigital number, since it uses as much as digits as its factorization.

12906245971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 12906245971 in words is "twelve billion, nine hundred six million, two hundred forty-five thousand, nine hundred seventy-one".