68032480680 has 96 divisors (see below), whose sum is σ = 221585724360. Its totient is φ = 18102597120.

The previous prime is 68032480667. The next prime is 68032480699. The reversal of 68032480680 is 8608423086.

It is a happy number.

68032480680 is a `hidden beast` number, since 6 + 80 + 32 + 480 + 68 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25225698276 + 42806782404 = 158826^2 + 206898^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39007 + ... + 370926.

Almost surely, 2^68032480680 is an apocalyptic number.

68032480680 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 68032480680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110792862180).

68032480680 is an abundant number, since it is smaller than the sum of its proper divisors (153553243680).

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

68032480680 is a wasteful number, since it uses less digits than its factorization.

68032480680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410411 (or 410404 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 68032480680 in words is "sixty-eight billion, thirty-two million, four hundred eighty thousand, six hundred eighty".