864816086618 has 8 divisors (see below), whose sum is σ = 1415153596320. Its totient is φ = 393098221180.

The previous prime is 864816086597. The next prime is 864816086657. The reversal of 864816086618 is 816680618468.

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

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, 19654911038 + ... + 19654911081.

It is an arithmetic number, because the mean of its divisors is an integer number (176894199540).

Almost surely, 2^864816086618 is an apocalyptic number.

864816086618 is a deficient number, since it is larger than the sum of its proper divisors (550337509702).

864816086618 is a wasteful number, since it uses less digits than its factorization.

864816086618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39309822132.

The product of its (nonzero) digits is 21233664, while the sum is 62.

The spelling of 864816086618 in words is "eight hundred sixty-four billion, eight hundred sixteen million, eighty-six thousand, six hundred eighteen".