12730765867 has 2 divisors, whose sum is σ = 12730765868. Its totient is φ = 12730765866.

The previous prime is 12730765847. The next prime is 12730765961. The reversal of 12730765867 is 76856703721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12730765867 - 2⁷ = 12730765739 is a prime.

It is not a weakly prime, because it can be changed into another prime (12730765807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6365382933 + 6365382934.

It is an arithmetic number, because the mean of its divisors is an integer number (6365382934).

Almost surely, 2^12730765867 is an apocalyptic number.

12730765867 is a deficient number, since it is larger than the sum of its proper divisors (1).

12730765867 is an equidigital number, since it uses as much as digits as its factorization.

12730765867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 12730765867 in words is "twelve billion, seven hundred thirty million, seven hundred sixty-five thousand, eight hundred sixty-seven".