6864444686 has 8 divisors (see below), whose sum is σ = 11232727704. Its totient is φ = 3120202120.

The previous prime is 6864444641. The next prime is 6864444761.

6864444686 is nontrivially palindromic in base 10.

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

It is a congruent number.

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, 156010085 + ... + 156010128.

It is an arithmetic number, because the mean of its divisors is an integer number (1404090963).

Almost surely, 2^6864444686 is an apocalyptic number.

6864444686 is a deficient number, since it is larger than the sum of its proper divisors (4368283018).

6864444686 is a wasteful number, since it uses less digits than its factorization.

6864444686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312020226.

The product of its digits is 21233664, while the sum is 56.

The square root of 6864444686 is about 82851.9443706664. The cubic root of 6864444686 is about 1900.5026081226.

The spelling of 6864444686 in words is "six billion, eight hundred sixty-four million, four hundred forty-four thousand, six hundred eighty-six".