866773912 has 16 divisors (see below), whose sum is σ = 1625562360. Its totient is φ = 433290624.

The previous prime is 866773867. The next prime is 866773933. The reversal of 866773912 is 219377668.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38848 + ... + 56944.

Almost surely, 2^866773912 is an apocalyptic number.

It is an amenable number.

866773912 is a deficient number, since it is larger than the sum of its proper divisors (758788448).

866773912 is a wasteful number, since it uses less digits than its factorization.

866773912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24090 (or 24086 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 866773912 is about 29441.0243028329. The cubic root of 866773912 is about 953.4588272156.

The spelling of 866773912 in words is "eight hundred sixty-six million, seven hundred seventy-three thousand, nine hundred twelve".