268313153338 has 4 divisors (see below), whose sum is σ = 402469730010. Its totient is φ = 134156576668.

The previous prime is 268313153327. The next prime is 268313153357. The reversal of 268313153338 is 833351313862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 190674575569 + 77638577769 = 436663^2 + 278637^2 .

It is a super-2 number, since 2×268313153338² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67078288333 + ... + 67078288336.

Almost surely, 2^268313153338 is an apocalyptic number.

268313153338 is a deficient number, since it is larger than the sum of its proper divisors (134156576672).

268313153338 is a wasteful number, since it uses less digits than its factorization.

268313153338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134156576671.

The product of its digits is 933120, while the sum is 46.

The spelling of 268313153338 in words is "two hundred sixty-eight billion, three hundred thirteen million, one hundred fifty-three thousand, three hundred thirty-eight".