12571277597 has 2 divisors, whose sum is σ = 12571277598. Its totient is φ = 12571277596.

The previous prime is 12571277549. The next prime is 12571277627. The reversal of 12571277597 is 79577217521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10858890436 + 1712387161 = 104206^2 + 41381^2 .

It is a cyclic number.

It is not a de Polignac number, because 12571277597 - 2⁶ = 12571277533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12571277497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6285638798 + 6285638799.

It is an arithmetic number, because the mean of its divisors is an integer number (6285638799).

Almost surely, 2^12571277597 is an apocalyptic number.

It is an amenable number.

12571277597 is a deficient number, since it is larger than the sum of its proper divisors (1).

12571277597 is an equidigital number, since it uses as much as digits as its factorization.

12571277597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160900, while the sum is 53.

The spelling of 12571277597 in words is "twelve billion, five hundred seventy-one million, two hundred seventy-seven thousand, five hundred ninety-seven".