268000133628 has 12 divisors (see below), whose sum is σ = 625333645160. Its totient is φ = 89333377872.

The previous prime is 268000133603. The next prime is 268000133663. The reversal of 268000133628 is 826331000862.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11166672223 + ... + 11166672246.

Almost surely, 2^268000133628 is an apocalyptic number.

It is an amenable number.

268000133628 is an abundant number, since it is smaller than the sum of its proper divisors (357333511532).

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

268000133628 is a wasteful number, since it uses less digits than its factorization.

268000133628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22333344476 (or 22333344474 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 268000133628 in words is "two hundred sixty-eight billion, one hundred thirty-three thousand, six hundred twenty-eight".