65726268 has 12 divisors (see below), whose sum is σ = 153361320. Its totient is φ = 21908752.

The previous prime is 65726251. The next prime is 65726273. The reversal of 65726268 is 86262756.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2738583 + ... + 2738606.

It is an arithmetic number, because the mean of its divisors is an integer number (12780110).

Almost surely, 2^65726268 is an apocalyptic number.

It is an amenable number.

65726268 is an abundant number, since it is smaller than the sum of its proper divisors (87635052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65726268 is a wasteful number, since it uses less digits than its factorization.

65726268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477196 (or 5477194 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 65726268 is about 8107.1738602302. The cubic root of 65726268 is about 403.5645325800.

The spelling of 65726268 in words is "sixty-five million, seven hundred twenty-six thousand, two hundred sixty-eight".