866786274634348 has 12 divisors (see below), whose sum is σ = 1516876270717360. Its totient is φ = 433393054429392.

The previous prime is 866786274634331. The next prime is 866786274634349. The reversal of 866786274634348 is 843436472687668.

It is a super-2 number, since 2×866786274634348² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (866786274634349) 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 3 ways as a sum of consecutive naturals, for example, 6897358 + ... + 42203626.

Almost surely, 2^{866786274634348} is an apocalyptic number.

It is an amenable number.

866786274634348 is a deficient number, since it is larger than the sum of its proper divisors (650089996083012).

866786274634348 is a wasteful number, since it uses less digits than its factorization.

866786274634348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41443896 (or 41443894 counting only the distinct ones).

The product of its digits is 37456183296, while the sum is 82.

The spelling of 866786274634348 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, two hundred seventy-four million, six hundred thirty-four thousand, three hundred forty-eight".