12975943727 has 2 divisors, whose sum is σ = 12975943728. Its totient is φ = 12975943726.

The previous prime is 12975943703. The next prime is 12975943759. The reversal of 12975943727 is 72734957921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (72734957921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12975943727 - 2¹⁸ = 12975681583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12975943777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487971863 + 6487971864.

It is an arithmetic number, because the mean of its divisors is an integer number (6487971864).

Almost surely, 2^12975943727 is an apocalyptic number.

12975943727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12975943727 is an equidigital number, since it uses as much as digits as its factorization.

12975943727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6667920, while the sum is 56.

The spelling of 12975943727 in words is "twelve billion, nine hundred seventy-five million, nine hundred forty-three thousand, seven hundred twenty-seven".