12746538619 has 2 divisors, whose sum is σ = 12746538620. Its totient is φ = 12746538618.

The previous prime is 12746538533. The next prime is 12746538631. The reversal of 12746538619 is 91683564721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12746538619 is a prime.

It is a super-2 number, since 2×12746538619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12746538419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6373269309 + 6373269310.

It is an arithmetic number, because the mean of its divisors is an integer number (6373269310).

Almost surely, 2^12746538619 is an apocalyptic number.

12746538619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12746538619 is an equidigital number, since it uses as much as digits as its factorization.

12746538619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The spelling of 12746538619 in words is "twelve billion, seven hundred forty-six million, five hundred thirty-eight thousand, six hundred nineteen".