12761617087 has 2 divisors, whose sum is σ = 12761617088. Its totient is φ = 12761617086.

The previous prime is 12761617061. The next prime is 12761617093. The reversal of 12761617087 is 78071616721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12761617087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12761117087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380808543 + 6380808544.

It is an arithmetic number, because the mean of its divisors is an integer number (6380808544).

Almost surely, 2^12761617087 is an apocalyptic number.

12761617087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12761617087 is an equidigital number, since it uses as much as digits as its factorization.

12761617087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 12761617087 in words is "twelve billion, seven hundred sixty-one million, six hundred seventeen thousand, eighty-seven".