268887251 has 8 divisors (see below), whose sum is σ = 279940224. Its totient is φ = 258033600.

The previous prime is 268887233. The next prime is 268887253. The reversal of 268887251 is 152788862.

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 268887251 - 2¹⁰ = 268886227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268887196 and 268887205.

It is not an unprimeable number, because it can be changed into a prime (268887253) 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, 47075 + ... + 52476.

It is an arithmetic number, because the mean of its divisors is an integer number (34992528).

Almost surely, 2^268887251 is an apocalyptic number.

268887251 is a deficient number, since it is larger than the sum of its proper divisors (11052973).

268887251 is an equidigital number, since it uses as much as digits as its factorization.

268887251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99661.

The product of its digits is 430080, while the sum is 47.

The square root of 268887251 is about 16397.7818926829. The cubic root of 268887251 is about 645.4412788633.

The spelling of 268887251 in words is "two hundred sixty-eight million, eight hundred eighty-seven thousand, two hundred fifty-one".