6394858652568 has 32 divisors (see below), whose sum is σ = 15987627878400. Its totient is φ = 2131555384608.

The previous prime is 6394858652543. The next prime is 6394858652573. The reversal of 6394858652568 is 8652568584936.

It is a self number, because there is not a number n which added to its sum of digits gives 6394858652568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3193096 + ... + 4794327.

It is an arithmetic number, because the mean of its divisors is an integer number (499613371200).

Almost surely, 2^{6394858652568} is an apocalyptic number.

It is an amenable number.

6394858652568 is an abundant number, since it is smaller than the sum of its proper divisors (9592769225832).

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

6394858652568 is a wasteful number, since it uses less digits than its factorization.

6394858652568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020791 (or 8020787 counting only the distinct ones).

The product of its digits is 2985984000, while the sum is 75.

The spelling of 6394858652568 in words is "six trillion, three hundred ninety-four billion, eight hundred fifty-eight million, six hundred fifty-two thousand, five hundred sixty-eight".