12856356907 has 2 divisors, whose sum is σ = 12856356908. Its totient is φ = 12856356906.

The previous prime is 12856356901. The next prime is 12856356911. The reversal of 12856356907 is 70965365821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12856356907 is a prime.

It is not a weakly prime, because it can be changed into another prime (12856356901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428178453 + 6428178454.

It is an arithmetic number, because the mean of its divisors is an integer number (6428178454).

Almost surely, 2^12856356907 is an apocalyptic number.

12856356907 is a deficient number, since it is larger than the sum of its proper divisors (1).

12856356907 is an equidigital number, since it uses as much as digits as its factorization.

12856356907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 12856356907 in words is "twelve billion, eight hundred fifty-six million, three hundred fifty-six thousand, nine hundred seven".