13044369538 has 8 divisors (see below), whose sum is σ = 19615841532. Its totient is φ = 6505755696.

The previous prime is 13044369509. The next prime is 13044369539. The reversal of 13044369538 is 83596344031.

It can be written as a sum of positive squares in 2 ways, for example, as 13027254769 + 17114769 = 114137^2 + 4137^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13044369539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8213545 + ... + 8215132.

Almost surely, 2^13044369538 is an apocalyptic number.

13044369538 is a deficient number, since it is larger than the sum of its proper divisors (6571471994).

13044369538 is a wasteful number, since it uses less digits than its factorization.

13044369538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429076.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 13044369538 in words is "thirteen billion, forty-four million, three hundred sixty-nine thousand, five hundred thirty-eight".