12457936871 has 2 divisors, whose sum is σ = 12457936872. Its totient is φ = 12457936870.

The previous prime is 12457936849. The next prime is 12457936949. The reversal of 12457936871 is 17863975421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12457936871 - 2³⁰ = 11384195047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12457936801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228968435 + 6228968436.

It is an arithmetic number, because the mean of its divisors is an integer number (6228968436).

Almost surely, 2^12457936871 is an apocalyptic number.

12457936871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12457936871 is an equidigital number, since it uses as much as digits as its factorization.

12457936871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The spelling of 12457936871 in words is "twelve billion, four hundred fifty-seven million, nine hundred thirty-six thousand, eight hundred seventy-one".