8845448639 has 2 divisors, whose sum is σ = 8845448640. Its totient is φ = 8845448638.

The previous prime is 8845448603. The next prime is 8845448819. The reversal of 8845448639 is 9368445488.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8845448639 - 2²⁰ = 8844400063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8845448039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4422724319 + 4422724320.

It is an arithmetic number, because the mean of its divisors is an integer number (4422724320).

Almost surely, 2^8845448639 is an apocalyptic number.

8845448639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8845448639 is an equidigital number, since it uses as much as digits as its factorization.

8845448639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26542080, while the sum is 59.

The square root of 8845448639 is about 94050.2452894196. The cubic root of 8845448639 is about 2068.1083513665.

The spelling of 8845448639 in words is "eight billion, eight hundred forty-five million, four hundred forty-eight thousand, six hundred thirty-nine".