12765418867 has 2 divisors, whose sum is σ = 12765418868. Its totient is φ = 12765418866.

The previous prime is 12765418817. The next prime is 12765418891. The reversal of 12765418867 is 76881456721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12765418867 - 2¹⁵ = 12765386099 is a prime.

It is not a weakly prime, because it can be changed into another prime (12765418817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6382709433 + 6382709434.

It is an arithmetic number, because the mean of its divisors is an integer number (6382709434).

Almost surely, 2^12765418867 is an apocalyptic number.

12765418867 is a deficient number, since it is larger than the sum of its proper divisors (1).

12765418867 is an equidigital number, since it uses as much as digits as its factorization.

12765418867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 55.

The spelling of 12765418867 in words is "twelve billion, seven hundred sixty-five million, four hundred eighteen thousand, eight hundred sixty-seven".