866763317442373 has 8 divisors (see below), whose sum is σ = 933437692279008. Its totient is φ = 800088981676464.

The previous prime is 866763317442247. The next prime is 866763317442403. The reversal of 866763317442373 is 373244713367668.

It is a happy number.

866763317442373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 866763317442373 - 2¹³ = 866763317434181 is a prime.

It is a super-2 number, since 2×866763317442373² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866763317442973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49731186 + ... + 64859212.

It is an arithmetic number, because the mean of its divisors is an integer number (116679711534876).

Almost surely, 2^{866763317442373} is an apocalyptic number.

It is an amenable number.

866763317442373 is a deficient number, since it is larger than the sum of its proper divisors (66674374836635).

866763317442373 is a wasteful number, since it uses less digits than its factorization.

866763317442373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19535363.

The product of its digits is 1536288768, while the sum is 70.

The spelling of 866763317442373 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, three hundred seventeen million, four hundred forty-two thousand, three hundred seventy-three".