268768878 has 64 divisors (see below), whose sum is σ = 657082368. Its totient is φ = 71539200.

The previous prime is 268768837. The next prime is 268768879. The reversal of 268768878 is 878867862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268768879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70251 + ... + 73977.

It is an arithmetic number, because the mean of its divisors is an integer number (10266912).

Almost surely, 2^268768878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268768878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328541184).

268768878 is an abundant number, since it is smaller than the sum of its proper divisors (388313490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268768878 is a wasteful number, since it uses less digits than its factorization.

268768878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857.

The product of its digits is 14450688, while the sum is 60.

The square root of 268768878 is about 16394.1720742464. The cubic root of 268768878 is about 645.3465501438.

The spelling of 268768878 in words is "two hundred sixty-eight million, seven hundred sixty-eight thousand, eight hundred seventy-eight".