12626251387 has 2 divisors, whose sum is σ = 12626251388. Its totient is φ = 12626251386.

The previous prime is 12626251291. The next prime is 12626251397. The reversal of 12626251387 is 78315262621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12626251387 is a prime.

It is not a weakly prime, because it can be changed into another prime (12626251397) 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, 6313125693 + 6313125694.

It is an arithmetic number, because the mean of its divisors is an integer number (6313125694).

Almost surely, 2^12626251387 is an apocalyptic number.

12626251387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12626251387 is an equidigital number, since it uses as much as digits as its factorization.

12626251387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The spelling of 12626251387 in words is "twelve billion, six hundred twenty-six million, two hundred fifty-one thousand, three hundred eighty-seven".