68817530880 has 832 divisors, whose sum is σ = 292139550720. Its totient is φ = 15026356224.

The previous prime is 68817530863. The next prime is 68817530923. The reversal of 68817530880 is 8803571886.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89026174 + ... + 89026946.

Almost surely, 2^68817530880 is an apocalyptic number.

68817530880 is a gapful number since it is divisible by the number (60) 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 68817530880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146069775360).

68817530880 is an abundant number, since it is smaller than the sum of its proper divisors (223322019840).

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

68817530880 is a wasteful number, since it uses less digits than its factorization.

68817530880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 68817530880 in words is "sixty-eight billion, eight hundred seventeen million, five hundred thirty thousand, eight hundred eighty".