13244122636 has 48 divisors (see below), whose sum is σ = 24714375840. Its totient is φ = 6199119360.

The previous prime is 13244122631. The next prime is 13244122667. The reversal of 13244122636 is 63622144231.

It is not an unprimeable number, because it can be changed into a prime (13244122631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673666 + ... + 693046.

It is an arithmetic number, because the mean of its divisors is an integer number (514882830).

Almost surely, 2^13244122636 is an apocalyptic number.

It is an amenable number.

13244122636 is a deficient number, since it is larger than the sum of its proper divisors (11470253204).

13244122636 is a wasteful number, since it uses less digits than its factorization.

13244122636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19594 (or 19592 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

Adding to 13244122636 its reverse (63622144231), we get a palindrome (76866266867).

The spelling of 13244122636 in words is "thirteen billion, two hundred forty-four million, one hundred twenty-two thousand, six hundred thirty-six".