12595981297 has 4 divisors (see below), whose sum is σ = 12768529060. Its totient is φ = 12423433536.

The previous prime is 12595981273. The next prime is 12595981301. The reversal of 12595981297 is 79218959521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6414247921 + 6181733376 = 80089^2 + 78624^2 .

It is a cyclic number.

It is not a de Polignac number, because 12595981297 - 2⁷ = 12595981169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12595981267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86273772 + ... + 86273917.

It is an arithmetic number, because the mean of its divisors is an integer number (3192132265).

Almost surely, 2^12595981297 is an apocalyptic number.

It is an amenable number.

12595981297 is a deficient number, since it is larger than the sum of its proper divisors (172547763).

12595981297 is an equidigital number, since it uses as much as digits as its factorization.

12595981297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172547762.

The product of its digits is 4082400, while the sum is 58.

The spelling of 12595981297 in words is "twelve billion, five hundred ninety-five million, nine hundred eighty-one thousand, two hundred ninety-seven".