24228864644 has 12 divisors (see below), whose sum is σ = 44894661084. Its totient is φ = 11401818624.

The previous prime is 24228864643. The next prime is 24228864659. The reversal of 24228864644 is 44646882242.

It can be written as a sum of positive squares in 2 ways, for example, as 22557036100 + 1671828544 = 150190^2 + 40888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24228864592 and 24228864601.

It is not an unprimeable number, because it can be changed into a prime (24228864641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178153349 + ... + 178153484.

It is an arithmetic number, because the mean of its divisors is an integer number (3741221757).

Almost surely, 2^24228864644 is an apocalyptic number.

It is an amenable number.

24228864644 is a deficient number, since it is larger than the sum of its proper divisors (20665796440).

24228864644 is a wasteful number, since it uses less digits than its factorization.

24228864644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356306854 (or 356306852 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 50.

The spelling of 24228864644 in words is "twenty-four billion, two hundred twenty-eight million, eight hundred sixty-four thousand, six hundred forty-four".