12297051887 has 2 divisors, whose sum is σ = 12297051888. Its totient is φ = 12297051886.

The previous prime is 12297051857. The next prime is 12297051919. The reversal of 12297051887 is 78815079221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12297051887 - 2⁸ = 12297051631 is a prime.

It is a super-2 number, since 2×12297051887² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12297051817) 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 as a sum of consecutive naturals, namely, 6148525943 + 6148525944.

It is an arithmetic number, because the mean of its divisors is an integer number (6148525944).

Almost surely, 2^12297051887 is an apocalyptic number.

12297051887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12297051887 is an equidigital number, since it uses as much as digits as its factorization.

12297051887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 12297051887 in words is "twelve billion, two hundred ninety-seven million, fifty-one thousand, eight hundred eighty-seven".