268521383 has 8 divisors (see below), whose sum is σ = 289326576. Its totient is φ = 247737600.

The previous prime is 268521377. The next prime is 268521403. The reversal of 268521383 is 383125862.

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 268521383 - 2⁴ = 268521367 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 (268221383) 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, 28823 + ... + 36983.

It is an arithmetic number, because the mean of its divisors is an integer number (36165822).

Almost surely, 2^268521383 is an apocalyptic number.

268521383 is a deficient number, since it is larger than the sum of its proper divisors (20805193).

268521383 is a wasteful number, since it uses less digits than its factorization.

268521383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10705.

The product of its digits is 69120, while the sum is 38.

The square root of 268521383 is about 16386.6220741189. The cubic root of 268521383 is about 645.1484008434.

The spelling of 268521383 in words is "two hundred sixty-eight million, five hundred twenty-one thousand, three hundred eighty-three".