12887246971 has 2 divisors, whose sum is σ = 12887246972. Its totient is φ = 12887246970.

The previous prime is 12887246887. The next prime is 12887246987. The reversal of 12887246971 is 17964278821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12887246971 - 2²⁵ = 12853692539 is a prime.

It is a super-2 number, since 2×12887246971² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12887246371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443623485 + 6443623486.

It is an arithmetic number, because the mean of its divisors is an integer number (6443623486).

Almost surely, 2^12887246971 is an apocalyptic number.

12887246971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12887246971 is an equidigital number, since it uses as much as digits as its factorization.

12887246971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 55.

The spelling of 12887246971 in words is "twelve billion, eight hundred eighty-seven million, two hundred forty-six thousand, nine hundred seventy-one".