68641080 has 64 divisors (see below), whose sum is σ = 208081440. Its totient is φ = 18112512.

The previous prime is 68641073. The next prime is 68641109. The reversal of 68641080 is 8014686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8692 + ... + 14588.

Almost surely, 2^68641080 is an apocalyptic number.

68641080 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 68641080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104040720).

68641080 is an abundant number, since it is smaller than the sum of its proper divisors (139440360).

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

68641080 is a wasteful number, since it uses less digits than its factorization.

68641080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008 (or 6004 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 68641080 is about 8284.9912492410. The cubic root of 68641080 is about 409.4441804108. Note that the first 3 decimals are identical.

The spelling of 68641080 in words is "sixty-eight million, six hundred forty-one thousand, eighty".