864685586468 has 24 divisors (see below), whose sum is σ = 1665371927520. Its totient is φ = 389560680320.

The previous prime is 864685586467. The next prime is 864685586491.

864685586468 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 864685586395 and 864685586404.

It is not an unprimeable number, because it can be changed into a prime (864685586467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86950538 + ... + 86960481.

It is an arithmetic number, because the mean of its divisors is an integer number (69390496980).

Almost surely, 2^864685586468 is an apocalyptic number.

It is an amenable number.

864685586468 is a deficient number, since it is larger than the sum of its proper divisors (800686341052).

864685586468 is a wasteful number, since it uses less digits than its factorization.

864685586468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173911147 (or 173911145 counting only the distinct ones).

The product of its digits is 2123366400, while the sum is 74.

The spelling of 864685586468 in words is "eight hundred sixty-four billion, six hundred eighty-five million, five hundred eighty-six thousand, four hundred sixty-eight".