268578678460 has 48 divisors (see below), whose sum is σ = 583744644000. Its totient is φ = 103677050624.

The previous prime is 268578678451. The next prime is 268578678491. The reversal of 268578678460 is 64876875862.

268578678460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107114 + ... + 1327726.

It is an arithmetic number, because the mean of its divisors is an integer number (12161346750).

Almost surely, 2^268578678460 is an apocalyptic number.

268578678460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268578678460 is an abundant number, since it is smaller than the sum of its proper divisors (315165965540).

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

268578678460 is a wasteful number, since it uses less digits than its factorization.

268578678460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222750 (or 222748 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 67.

The spelling of 268578678460 in words is "two hundred sixty-eight billion, five hundred seventy-eight million, six hundred seventy-eight thousand, four hundred sixty".