12839367491 has 2 divisors, whose sum is σ = 12839367492. Its totient is φ = 12839367490.

The previous prime is 12839367469. The next prime is 12839367493. The reversal of 12839367491 is 19476393821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12839367491 - 2⁶ = 12839367427 is a prime.

Together with 12839367493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12839367493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419683745 + 6419683746.

It is an arithmetic number, because the mean of its divisors is an integer number (6419683746).

Almost surely, 2^12839367491 is an apocalyptic number.

12839367491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12839367491 is an equidigital number, since it uses as much as digits as its factorization.

12839367491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The spelling of 12839367491 in words is "twelve billion, eight hundred thirty-nine million, three hundred sixty-seven thousand, four hundred ninety-one".