12908170787 has 2 divisors, whose sum is σ = 12908170788. Its totient is φ = 12908170786.

The previous prime is 12908170721. The next prime is 12908170801. The reversal of 12908170787 is 78707180921.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78707180921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12908170787 is a prime.

It is not a weakly prime, because it can be changed into another prime (12908160787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454085393 + 6454085394.

It is an arithmetic number, because the mean of its divisors is an integer number (6454085394).

Almost surely, 2^12908170787 is an apocalyptic number.

12908170787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12908170787 is an equidigital number, since it uses as much as digits as its factorization.

12908170787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 50.

The spelling of 12908170787 in words is "twelve billion, nine hundred eight million, one hundred seventy thousand, seven hundred eighty-seven".