12296591287 has 4 divisors (see below), whose sum is σ = 12297415840. Its totient is φ = 12295766736.

The previous prime is 12296591273. The next prime is 12296591291. The reversal of 12296591287 is 78219569221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12296591287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12296591207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389487 + ... + 419872.

It is an arithmetic number, because the mean of its divisors is an integer number (3074353960).

Almost surely, 2^12296591287 is an apocalyptic number.

12296591287 is a deficient number, since it is larger than the sum of its proper divisors (824553).

12296591287 is an equidigital number, since it uses as much as digits as its factorization.

12296591287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824552.

The product of its digits is 1088640, while the sum is 52.

The spelling of 12296591287 in words is "twelve billion, two hundred ninety-six million, five hundred ninety-one thousand, two hundred eighty-seven".