866763322228461 has 48 divisors (see below), whose sum is σ = 1340176225009664. Its totient is φ = 488095404043968.

The previous prime is 866763322228313. The next prime is 866763322228493. The reversal of 866763322228461 is 164822223367668.

It is not a de Polignac number, because 866763322228461 - 2¹⁷ = 866763322097389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866763322228392 and 866763322228401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866763322220461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51890676 + ... + 66529458.

Almost surely, 2^{866763322228461} is an apocalyptic number.

It is an amenable number.

866763322228461 is a deficient number, since it is larger than the sum of its proper divisors (473412902781203).

866763322228461 is a wasteful number, since it uses less digits than its factorization.

866763322228461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14639218 (or 14639069 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 66.

The spelling of 866763322228461 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, three hundred twenty-two million, two hundred twenty-eight thousand, four hundred sixty-one".