8244320641 has 4 divisors (see below), whose sum is σ = 8436049072. Its totient is φ = 8052592212.

The previous prime is 8244320633. The next prime is 8244320659. The reversal of 8244320641 is 1460234428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8244320641 - 2³ = 8244320633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8244320597 and 8244320606.

It is not an unprimeable number, because it can be changed into a prime (8244320671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95864151 + ... + 95864236.

It is an arithmetic number, because the mean of its divisors is an integer number (2109012268).

Almost surely, 2^8244320641 is an apocalyptic number.

It is an amenable number.

8244320641 is a deficient number, since it is larger than the sum of its proper divisors (191728431).

8244320641 is a wasteful number, since it uses less digits than its factorization.

8244320641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191728430.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 8244320641 is about 90798.2413981681. The cubic root of 8244320641 is about 2020.1562341173.

The spelling of 8244320641 in words is "eight billion, two hundred forty-four million, three hundred twenty thousand, six hundred forty-one".