13494771889 has 3 divisors (see below), whose sum is σ = 13494888057. Its totient is φ = 13494655722.

The previous prime is 13494771883. The next prime is 13494771937. The reversal of 13494771889 is 98817749431.

The square root of 13494771889 is 116167.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98817749431 = 59 ⋅1674877109.

It is not a de Polignac number, because 13494771889 - 2¹⁵ = 13494739121 is a prime.

It is a super-2 number, since 2×13494771889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13494771883) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 58084 + ... + 174250.

It is an arithmetic number, because the mean of its divisors is an integer number (4498296019).

Almost surely, 2^13494771889 is an apocalyptic number.

13494771889 is the 116167-th square number.

13494771889 is the 58084-th centered octagonal number.

It is an amenable number.

13494771889 is a deficient number, since it is larger than the sum of its proper divisors (116168).

13494771889 is an frugal number, since it uses more digits than its factorization.

13494771889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232334 (or 116167 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 61.

The spelling of 13494771889 in words is "thirteen billion, four hundred ninety-four million, seven hundred seventy-one thousand, eight hundred eighty-nine".