12928488799991 has 2 divisors, whose sum is σ = 12928488799992. Its totient is φ = 12928488799990.

The previous prime is 12928488799937. The next prime is 12928488800039. The reversal of 12928488799991 is 19999788482921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12928488799991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12928488795991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6464244399995 + 6464244399996.

It is an arithmetic number, because the mean of its divisors is an integer number (6464244399996).

Almost surely, 2^{12928488799991} is an apocalyptic number.

12928488799991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12928488799991 is an equidigital number, since it uses as much as digits as its factorization.

12928488799991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386105856, while the sum is 86.

The spelling of 12928488799991 in words is "twelve trillion, nine hundred twenty-eight billion, four hundred eighty-eight million, seven hundred ninety-nine thousand, nine hundred ninety-one".