268680865 has 8 divisors (see below), whose sum is σ = 331131240. Its totient is φ = 209135232.

The previous prime is 268680857. The next prime is 268680883. The reversal of 268680865 is 568086862.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45805824 + 222875041 = 6768^2 + 14929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268680865 - 2³ = 268680857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725980 + ... + 726349.

It is an arithmetic number, because the mean of its divisors is an integer number (41391405).

Almost surely, 2^268680865 is an apocalyptic number.

It is an amenable number.

268680865 is a deficient number, since it is larger than the sum of its proper divisors (62450375).

268680865 is a wasteful number, since it uses less digits than its factorization.

268680865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452371.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 268680865 is about 16391.4875773982. The cubic root of 268680865 is about 645.2760991707.

The spelling of 268680865 in words is "two hundred sixty-eight million, six hundred eighty thousand, eight hundred sixty-five".