268485191 has 8 divisors (see below), whose sum is σ = 290351040. Its totient is φ = 246792672.

The previous prime is 268485137. The next prime is 268485211. The reversal of 268485191 is 191584862.

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 268485191 - 2¹⁸ = 268223047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268485491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40100 + ... + 46313.

It is an arithmetic number, because the mean of its divisors is an integer number (36293880).

Almost surely, 2^268485191 is an apocalyptic number.

268485191 is a deficient number, since it is larger than the sum of its proper divisors (21865849).

268485191 is a wasteful number, since it uses less digits than its factorization.

268485191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86665.

The product of its digits is 138240, while the sum is 44.

The square root of 268485191 is about 16385.5177214515. The cubic root of 268485191 is about 645.1194146229.

The spelling of 268485191 in words is "two hundred sixty-eight million, four hundred eighty-five thousand, one hundred ninety-one".