13247087109 has 32 divisors (see below), whose sum is σ = 18722119680. Its totient is φ = 8308383552.

The previous prime is 13247087093. The next prime is 13247087137. The reversal of 13247087109 is 90178074231.

It is not a de Polignac number, because 13247087109 - 2⁴ = 13247087093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247087309) 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 31 ways as a sum of consecutive naturals, for example, 9689944 + ... + 9691310.

It is an arithmetic number, because the mean of its divisors is an integer number (585066240).

Almost surely, 2^13247087109 is an apocalyptic number.

13247087109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13247087109 is a deficient number, since it is larger than the sum of its proper divisors (5475032571).

13247087109 is a wasteful number, since it uses less digits than its factorization.

13247087109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 13247087109 in words is "thirteen billion, two hundred forty-seven million, eighty-seven thousand, one hundred nine".