268313313136 has 80 divisors (see below), whose sum is σ = 568884446208. Its totient is φ = 121581152000.

The previous prime is 268313313127. The next prime is 268313313143. The reversal of 268313313136 is 631313313862.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91666905 + ... + 91669831.

Almost surely, 2^268313313136 is an apocalyptic number.

It is an amenable number.

268313313136 is an abundant number, since it is smaller than the sum of its proper divisors (300571133072).

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

268313313136 is a wasteful number, since it uses less digits than its factorization.

268313313136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390 (or 4384 counting only the distinct ones).

The product of its digits is 139968, while the sum is 40.

Adding to 268313313136 its reverse (631313313862), we get a palindrome (899626626998).

The spelling of 268313313136 in words is "two hundred sixty-eight billion, three hundred thirteen million, three hundred thirteen thousand, one hundred thirty-six".