8643097856959 has 4 divisors (see below), whose sum is σ = 8921907465280. Its totient is φ = 8364288248640.

The previous prime is 8643097856941. The next prime is 8643097857011. The reversal of 8643097856959 is 9596587903468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8643097856959 - 2⁵ = 8643097856927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8643097856909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139404804114 + ... + 139404804175.

It is an arithmetic number, because the mean of its divisors is an integer number (2230476866320).

Almost surely, 2^{8643097856959} is an apocalyptic number.

8643097856959 is a deficient number, since it is larger than the sum of its proper divisors (278809608321).

8643097856959 is a wasteful number, since it uses less digits than its factorization.

8643097856959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278809608320.

The product of its (nonzero) digits is 3527193600, while the sum is 79.

The spelling of 8643097856959 in words is "eight trillion, six hundred forty-three billion, ninety-seven million, eight hundred fifty-six thousand, nine hundred fifty-nine".