12491366711 has 2 divisors, whose sum is σ = 12491366712. Its totient is φ = 12491366710.

The previous prime is 12491366687. The next prime is 12491366717. The reversal of 12491366711 is 11766319421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12491366711 - 2⁶ = 12491366647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12491366717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6245683355 + 6245683356.

It is an arithmetic number, because the mean of its divisors is an integer number (6245683356).

Almost surely, 2^12491366711 is an apocalyptic number.

12491366711 is a deficient number, since it is larger than the sum of its proper divisors (1).

12491366711 is an equidigital number, since it uses as much as digits as its factorization.

12491366711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The spelling of 12491366711 in words is "twelve billion, four hundred ninety-one million, three hundred sixty-six thousand, seven hundred eleven".