1266875882999 has 2 divisors, whose sum is σ = 1266875883000. Its totient is φ = 1266875882998.

The previous prime is 1266875882983. The next prime is 1266875883001. The reversal of 1266875882999 is 9992885786621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266875882999 - 2⁴ = 1266875882983 is a prime.

Together with 1266875883001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266875882099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633437941499 + 633437941500.

It is an arithmetic number, because the mean of its divisors is an integer number (633437941500).

Almost surely, 2^{1266875882999} is an apocalyptic number.

1266875882999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266875882999 is an equidigital number, since it uses as much as digits as its factorization.

1266875882999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881169920, while the sum is 80.

The spelling of 1266875882999 in words is "one trillion, two hundred sixty-six billion, eight hundred seventy-five million, eight hundred eighty-two thousand, nine hundred ninety-nine".