13732321109 has 4 divisors (see below), whose sum is σ = 14788653516. Its totient is φ = 12675988704.

The previous prime is 13732321067. The next prime is 13732321111. The reversal of 13732321109 is 90112323731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2681686225 + 11050634884 = 51785^2 + 105122^2 .

It is a cyclic number.

It is not a de Polignac number, because 13732321109 - 2²⁸ = 13463885653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13732321709) 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, 528166184 + ... + 528166209.

It is an arithmetic number, because the mean of its divisors is an integer number (3697163379).

Almost surely, 2^13732321109 is an apocalyptic number.

It is an amenable number.

13732321109 is a deficient number, since it is larger than the sum of its proper divisors (1056332407).

13732321109 is a wasteful number, since it uses less digits than its factorization.

13732321109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056332406.

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 13732321109 in words is "thirteen billion, seven hundred thirty-two million, three hundred twenty-one thousand, one hundred nine".