268081321788 has 288 divisors, whose sum is σ = 846852464640. Its totient is φ = 72439738560.

The previous prime is 268081321777. The next prime is 268081321793. The reversal of 268081321788 is 887123180862.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 96050673 + ... + 96053463.

Almost surely, 2^268081321788 is an apocalyptic number.

268081321788 is a gapful number since it is divisible by the number (28) 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 268081321788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423426232320).

268081321788 is an abundant number, since it is smaller than the sum of its proper divisors (578771142852).

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

268081321788 is a wasteful number, since it uses less digits than its factorization.

268081321788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 268081321788 in words is "two hundred sixty-eight billion, eighty-one million, three hundred twenty-one thousand, seven hundred eighty-eight".