13347616789 has 12 divisors (see below), whose sum is σ = 14805864612. Its totient is φ = 12020361600.

The previous prime is 13347616781. The next prime is 13347616811. The reversal of 13347616789 is 98761674331.

It can be written as a sum of positive squares in 6 ways, for example, as 3084913764 + 10262703025 = 55542^2 + 101305^2 .

It is not a de Polignac number, because 13347616789 - 2³ = 13347616781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13347616781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 956242 + ... + 970099.

It is an arithmetic number, because the mean of its divisors is an integer number (1233822051).

Almost surely, 2^13347616789 is an apocalyptic number.

It is an amenable number.

13347616789 is a deficient number, since it is larger than the sum of its proper divisors (1458247823).

13347616789 is a wasteful number, since it uses less digits than its factorization.

13347616789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926408 (or 1926395 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The spelling of 13347616789 in words is "thirteen billion, three hundred forty-seven million, six hundred sixteen thousand, seven hundred eighty-nine".