12192767971 has 2 divisors, whose sum is σ = 12192767972. Its totient is φ = 12192767970.

The previous prime is 12192767963. The next prime is 12192768011. The reversal of 12192767971 is 17976729121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12192767971 - 2³ = 12192767963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12192767941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6096383985 + 6096383986.

It is an arithmetic number, because the mean of its divisors is an integer number (6096383986).

Almost surely, 2^12192767971 is an apocalyptic number.

12192767971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12192767971 is an equidigital number, since it uses as much as digits as its factorization.

12192767971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 52.

The spelling of 12192767971 in words is "twelve billion, one hundred ninety-two million, seven hundred sixty-seven thousand, nine hundred seventy-one".