268439551 has 8 divisors (see below), whose sum is σ = 279187520. Its totient is φ = 257875488.

The previous prime is 268439491. The next prime is 268439579. The reversal of 268439551 is 155934862.

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 268439551 - 2¹⁷ = 268308479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268439498 and 268439507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268439251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42996 + ... + 48841.

It is an arithmetic number, because the mean of its divisors is an integer number (34898440).

Almost surely, 2^268439551 is an apocalyptic number.

268439551 is a deficient number, since it is larger than the sum of its proper divisors (10747969).

268439551 is an equidigital number, since it uses as much as digits as its factorization.

268439551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91953.

The product of its digits is 259200, while the sum is 43.

The square root of 268439551 is about 16384.1249690058. The cubic root of 268439551 is about 645.0828577729.

The spelling of 268439551 in words is "two hundred sixty-eight million, four hundred thirty-nine thousand, five hundred fifty-one".