13667714281 has 45 divisors (see below), whose sum is σ = 16436369541. Its totient is φ = 11357943168.

The previous prime is 13667714261. The next prime is 13667714311. The reversal of 13667714281 is 18241776631.

The square root of 13667714281 is 116909.

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

13667714281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123409881 + 13544304400 = 11109^2 + 116380^2 .

It is not a de Polignac number, because 13667714281 - 2¹³ = 13667706089 is a prime.

It is a super-2 number, since 2×13667714281² (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 (13667714251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 594248436 + ... + 594248458.

Almost surely, 2^13667714281 is an apocalyptic number.

13667714281 is the 116909-th square number.

13667714281 is the 58455-th centered octagonal number.

It is an amenable number.

13667714281 is a deficient number, since it is larger than the sum of its proper divisors (2768655260).

13667714281 is an frugal number, since it uses more digits than its factorization.

13667714281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 53 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The spelling of 13667714281 in words is "thirteen billion, six hundred sixty-seven million, seven hundred fourteen thousand, two hundred eighty-one".