12766292281 has 8 divisors (see below), whose sum is σ = 12861345024. Its totient is φ = 12671484240.

The previous prime is 12766292269. The next prime is 12766292291. The reversal of 12766292281 is 18229266721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12766292281 is a prime.

It is a super-2 number, since 2×12766292281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12766292251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44226 + ... + 165796.

It is an arithmetic number, because the mean of its divisors is an integer number (1607668128).

Almost surely, 2^12766292281 is an apocalyptic number.

It is an amenable number.

12766292281 is a deficient number, since it is larger than the sum of its proper divisors (95052743).

12766292281 is a wasteful number, since it uses less digits than its factorization.

12766292281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122351.

The product of its digits is 290304, while the sum is 46.

The spelling of 12766292281 in words is "twelve billion, seven hundred sixty-six million, two hundred ninety-two thousand, two hundred eighty-one".