866918796 has 12 divisors (see below), whose sum is σ = 2022810552. Its totient is φ = 288972928.

The previous prime is 866918771. The next prime is 866918809. The reversal of 866918796 is 697819668.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36121605 + ... + 36121628.

It is an arithmetic number, because the mean of its divisors is an integer number (168567546).

Almost surely, 2^866918796 is an apocalyptic number.

It is an amenable number.

866918796 is an abundant number, since it is smaller than the sum of its proper divisors (1155891756).

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

866918796 is a wasteful number, since it uses less digits than its factorization.

866918796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72243240 (or 72243238 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 866918796 is about 29443.4847801683. The cubic root of 866918796 is about 953.5119488084.

The spelling of 866918796 in words is "eight hundred sixty-six million, nine hundred eighteen thousand, seven hundred ninety-six".