12179564987 has 2 divisors, whose sum is σ = 12179564988. Its totient is φ = 12179564986.

The previous prime is 12179564977. The next prime is 12179565023. The reversal of 12179564987 is 78946597121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12179564987 - 2²⁴ = 12162787771 is a prime.

It is not a weakly prime, because it can be changed into another prime (12179564977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6089782493 + 6089782494.

It is an arithmetic number, because the mean of its divisors is an integer number (6089782494).

Almost surely, 2^12179564987 is an apocalyptic number.

12179564987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12179564987 is an equidigital number, since it uses as much as digits as its factorization.

12179564987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 59.

The spelling of 12179564987 in words is "twelve billion, one hundred seventy-nine million, five hundred sixty-four thousand, nine hundred eighty-seven".