13685275281 has 16 divisors (see below), whose sum is σ = 19323261504. Its totient is φ = 8585562624.

The previous prime is 13685275199. The next prime is 13685275291. The reversal of 13685275281 is 18257258631.

It is not a de Polignac number, because 13685275281 - 2¹⁴ = 13685258897 is a prime.

It is a super-2 number, since 2×13685275281² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13685275281.

It is not an unprimeable number, because it can be changed into a prime (13685275291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421045 + ... + 452381.

It is an arithmetic number, because the mean of its divisors is an integer number (1207703844).

Almost surely, 2^13685275281 is an apocalyptic number.

It is an amenable number.

13685275281 is a deficient number, since it is larger than the sum of its proper divisors (5637986223).

13685275281 is a wasteful number, since it uses less digits than its factorization.

13685275281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39920.

The product of its digits is 806400, while the sum is 48.

The spelling of 13685275281 in words is "thirteen billion, six hundred eighty-five million, two hundred seventy-five thousand, two hundred eighty-one".