68788673280 has 324 divisors, whose sum is σ = 247173169152. Its totient is φ = 18341406720.

The previous prime is 68788673237. The next prime is 68788673287. The reversal of 68788673280 is 8237688786.

It is a tau number, because it is divible by the number of its divisors (324).

It is not an unprimeable number, because it can be changed into a prime (68788673287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8393985 + ... + 8402175.

Almost surely, 2^68788673280 is an apocalyptic number.

68788673280 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 68788673280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123586584576).

68788673280 is an abundant number, since it is smaller than the sum of its proper divisors (178384495872).

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

68788673280 is an frugal number, since it uses more digits than its factorization.

68788673280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8236 (or 8201 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 68788673280 in words is "sixty-eight billion, seven hundred eighty-eight million, six hundred seventy-three thousand, two hundred eighty".