268521323 has 8 divisors (see below), whose sum is σ = 313144800. Its totient is φ = 230160840.

The previous prime is 268521299. The next prime is 268521359. The reversal of 268521323 is 323125862.

It is not a de Polignac number, because 268521323 - 2¹⁰ = 268520299 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 268521323.

It is not an unprimeable number, because it can be changed into a prime (268521023) 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, 391088 + ... + 391773.

It is an arithmetic number, because the mean of its divisors is an integer number (39143100).

Almost surely, 2^268521323 is an apocalyptic number.

268521323 is a deficient number, since it is larger than the sum of its proper divisors (44623477).

268521323 is an frugal number, since it uses more digits than its factorization.

268521323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782882 (or 782868 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 268521323 is about 16386.6202433571. The cubic root of 268521323 is about 645.1483527915.

The spelling of 268521323 in words is "two hundred sixty-eight million, five hundred twenty-one thousand, three hundred twenty-three".