68281269 has 16 divisors (see below), whose sum is σ = 109524480. Its totient is φ = 36964080.

The previous prime is 68281253. The next prime is 68281289. The reversal of 68281269 is 96218286.

It is not a de Polignac number, because 68281269 - 2⁴ = 68281253 is a prime.

It is a super-2 number, since 2×68281269² = 9324663392500722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68281269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68281219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85167 + ... + 85964.

It is an arithmetic number, because the mean of its divisors is an integer number (6845280).

Almost surely, 2^68281269 is an apocalyptic number.

It is an amenable number.

68281269 is a deficient number, since it is larger than the sum of its proper divisors (41243211).

68281269 is a wasteful number, since it uses less digits than its factorization.

68281269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171160.

The product of its digits is 82944, while the sum is 42.

The square root of 68281269 is about 8263.2480901883. The cubic root of 68281269 is about 408.7275022454.

The spelling of 68281269 in words is "sixty-eight million, two hundred eighty-one thousand, two hundred sixty-nine".