864868802068 has 24 divisors (see below), whose sum is σ = 1524804724800. Its totient is φ = 429211290048.

The previous prime is 864868802051. The next prime is 864868802071. The reversal of 864868802068 is 860208868468.

It is a super-2 number, since 2×864868802068² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3507993 + ... + 3746431.

It is an arithmetic number, because the mean of its divisors is an integer number (63533530200).

Almost surely, 2^864868802068 is an apocalyptic number.

It is an amenable number.

864868802068 is a deficient number, since it is larger than the sum of its proper divisors (659935922732).

864868802068 is a wasteful number, since it uses less digits than its factorization.

864868802068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245199 (or 245197 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 64.

The spelling of 864868802068 in words is "eight hundred sixty-four billion, eight hundred sixty-eight million, eight hundred two thousand, sixty-eight".