12346127491 has 2 divisors, whose sum is σ = 12346127492. Its totient is φ = 12346127490.

The previous prime is 12346127371. The next prime is 12346127531. The reversal of 12346127491 is 19472164321.

It is an a-pointer prime, because the next prime (12346127531) can be obtained adding 12346127491 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12346127491 - 2⁹ = 12346126979 is a prime.

It is not a weakly prime, because it can be changed into another prime (12346127791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6173063745 + 6173063746.

It is an arithmetic number, because the mean of its divisors is an integer number (6173063746).

Almost surely, 2^12346127491 is an apocalyptic number.

12346127491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12346127491 is an equidigital number, since it uses as much as digits as its factorization.

12346127491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The spelling of 12346127491 in words is "twelve billion, three hundred forty-six million, one hundred twenty-seven thousand, four hundred ninety-one".