8259144447 has 8 divisors (see below), whose sum is σ = 11591781760. Its totient is φ = 5216301720.

The previous prime is 8259144437. The next prime is 8259144479. The reversal of 8259144447 is 7444419528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8259144447 - 2⁷ = 8259144319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8259144396 and 8259144405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8259144437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72448579 + ... + 72448692.

It is an arithmetic number, because the mean of its divisors is an integer number (1448972720).

Almost surely, 2^8259144447 is an apocalyptic number.

8259144447 is a deficient number, since it is larger than the sum of its proper divisors (3332637313).

8259144447 is a wasteful number, since it uses less digits than its factorization.

8259144447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144897293.

The product of its digits is 1290240, while the sum is 48.

The square root of 8259144447 is about 90879.8352056164. The cubic root of 8259144447 is about 2021.3662983870.

The spelling of 8259144447 in words is "eight billion, two hundred fifty-nine million, one hundred forty-four thousand, four hundred forty-seven".