866458629312 has 56 divisors (see below), whose sum is σ = 2296138574592. Its totient is φ = 288361785600.

The previous prime is 866458629251. The next prime is 866458629347. The reversal of 866458629312 is 213926854668.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3454764 + ... + 3697067.

Almost surely, 2^866458629312 is an apocalyptic number.

It is an amenable number.

866458629312 is an abundant number, since it is smaller than the sum of its proper divisors (1429679945280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866458629312 is a wasteful number, since it uses less digits than its factorization.

866458629312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152477 (or 7152467 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The spelling of 866458629312 in words is "eight hundred sixty-six billion, four hundred fifty-eight million, six hundred twenty-nine thousand, three hundred twelve".