268685953 has 4 divisors (see below), whose sum is σ = 268811440. Its totient is φ = 268560468.

The previous prime is 268685947. The next prime is 268685983. The reversal of 268685953 is 359586862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 268685953 - 2²¹ = 266588801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268685953.

It is not an unprimeable number, because it can be changed into a prime (268685933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59475 + ... + 63832.

It is an arithmetic number, because the mean of its divisors is an integer number (67202860).

Almost surely, 2^268685953 is an apocalyptic number.

It is an amenable number.

268685953 is a deficient number, since it is larger than the sum of its proper divisors (125487).

268685953 is a wasteful number, since it uses less digits than its factorization.

268685953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125486.

The product of its digits is 3110400, while the sum is 52.

The square root of 268685953 is about 16391.6427791726. The cubic root of 268685953 is about 645.2801723352.

Subtracting 268685953 from its reverse (359586862), we obtain a palindrome (90900909).

The spelling of 268685953 in words is "two hundred sixty-eight million, six hundred eighty-five thousand, nine hundred fifty-three".