864378585786 has 8 divisors (see below), whose sum is σ = 1728757171584. Its totient is φ = 288126195260.

The previous prime is 864378585773. The next prime is 864378585793. The reversal of 864378585786 is 687585873468.

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

864378585786 is an admirable number.

It is a super-2 number, since 2×864378585786² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72031548810 + ... + 72031548821.

It is an arithmetic number, because the mean of its divisors is an integer number (216094646448).

Almost surely, 2^864378585786 is an apocalyptic number.

864378585786 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

864378585786 is a wasteful number, since it uses less digits than its factorization.

864378585786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144063097636.

The product of its digits is 2167603200, while the sum is 75.

The spelling of 864378585786 in words is "eight hundred sixty-four billion, three hundred seventy-eight million, five hundred eighty-five thousand, seven hundred eighty-six".