12671320499 has 2 divisors, whose sum is σ = 12671320500. Its totient is φ = 12671320498.

The previous prime is 12671320483. The next prime is 12671320537. The reversal of 12671320499 is 99402317621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12671320499 - 2⁴ = 12671320483 is a prime.

It is not a weakly prime, because it can be changed into another prime (12671320429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6335660249 + 6335660250.

It is an arithmetic number, because the mean of its divisors is an integer number (6335660250).

Almost surely, 2^12671320499 is an apocalyptic number.

12671320499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12671320499 is an equidigital number, since it uses as much as digits as its factorization.

12671320499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 12671320499 in words is "twelve billion, six hundred seventy-one million, three hundred twenty thousand, four hundred ninety-nine".