268811783424 has 108 divisors (see below), whose sum is σ = 779067736356. Its totient is φ = 89139511296.

The previous prime is 268811783417. The next prime is 268811783473. The reversal of 268811783424 is 424387118862.

268811783424 is a `hidden beast` number, since 2 + 68 + 81 + 1 + 7 + 83 + 424 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27502905600 + 241308877824 = 165840^2 + 491232^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142414 + ... + 746930.

Almost surely, 2^268811783424 is an apocalyptic number.

268811783424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268811783424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389533868178).

268811783424 is an abundant number, since it is smaller than the sum of its proper divisors (510255952932).

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

268811783424 is a wasteful number, since it uses less digits than its factorization.

268811783424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604732 (or 604715 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The spelling of 268811783424 in words is "two hundred sixty-eight billion, eight hundred eleven million, seven hundred eighty-three thousand, four hundred twenty-four".