13126304544 has 24 divisors (see below), whose sum is σ = 34456549680. Its totient is φ = 4375434816.

The previous prime is 13126304507. The next prime is 13126304551. The reversal of 13126304544 is 44540362131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

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, 68366074 + ... + 68366265.

It is an arithmetic number, because the mean of its divisors is an integer number (1435689570).

Almost surely, 2^13126304544 is an apocalyptic number.

It is an amenable number.

13126304544 is an abundant number, since it is smaller than the sum of its proper divisors (21330245136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13126304544 is a wasteful number, since it uses less digits than its factorization.

13126304544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136732352 (or 136732344 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 13126304544 its reverse (44540362131), we get a palindrome (57666666675).

The spelling of 13126304544 in words is "thirteen billion, one hundred twenty-six million, three hundred four thousand, five hundred forty-four".