105568845439 has 4 divisors (see below), whose sum is σ = 105569921160. Its totient is φ = 105567769720.

The previous prime is 105568845407. The next prime is 105568845451. The reversal of 105568845439 is 934548865501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 105568845439 - 2⁵ = 105568845407 is a prime.

It is a super-2 number, since 2×105568845439² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105568845539) 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, 374017 + ... + 592474.

It is an arithmetic number, because the mean of its divisors is an integer number (26392480290).

Almost surely, 2^105568845439 is an apocalyptic number.

105568845439 is a deficient number, since it is larger than the sum of its proper divisors (1075721).

105568845439 is an equidigital number, since it uses as much as digits as its factorization.

105568845439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075720.

The product of its (nonzero) digits is 20736000, while the sum is 58.

The spelling of 105568845439 in words is "one hundred five billion, five hundred sixty-eight million, eight hundred forty-five thousand, four hundred thirty-nine".