13708428889 has 9 divisors (see below), whose sum is σ = 13803093759. Its totient is φ = 13614411240.

The previous prime is 13708428871. The next prime is 13708428913. The reversal of 13708428889 is 98882480731.

The square root of 13708428889 is 117083.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 13663739664 = 6685^2 + 116892^2 .

It is not a de Polignac number, because 13708428889 - 2¹¹ = 13708426841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13708428089) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22362547 + ... + 22363159.

Almost surely, 2^13708428889 is an apocalyptic number.

13708428889 is the 117083-rd square number.

13708428889 is the 58542-nd centered octagonal number.

It is an amenable number.

13708428889 is a deficient number, since it is larger than the sum of its proper divisors (94664870).

13708428889 is an frugal number, since it uses more digits than its factorization.

13708428889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

It can be divided in two parts, 1370842 and 8889, that added together give a palindrome (1379731).

The spelling of 13708428889 in words is "thirteen billion, seven hundred eight million, four hundred twenty-eight thousand, eight hundred eighty-nine".