268889851 has 8 divisors (see below), whose sum is σ = 276134400. Its totient is φ = 261741480.

The previous prime is 268889837. The next prime is 268889869. The reversal of 268889851 is 158988862.

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 268889851 - 2⁹ = 268889339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268889792 and 268889801.

It is not an unprimeable number, because it can be changed into a prime (268889821) 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, 18361 + ... + 29578.

It is an arithmetic number, because the mean of its divisors is an integer number (34516800).

Almost surely, 2^268889851 is an apocalyptic number.

268889851 is a deficient number, since it is larger than the sum of its proper divisors (7244549).

268889851 is an equidigital number, since it uses as much as digits as its factorization.

268889851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48089.

The product of its digits is 2211840, while the sum is 55.

The square root of 268889851 is about 16397.8611715065. The cubic root of 268889851 is about 645.4433592171.

The spelling of 268889851 in words is "two hundred sixty-eight million, eight hundred eighty-nine thousand, eight hundred fifty-one".