68080081 has 8 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 65646672.

The previous prime is 68080079. The next prime is 68080091. The reversal of 68080081 is 18008086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68080081 - 2¹ = 68080079 is a prime.

It is a super-2 number, since 2×68080081² = 9269794857933122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68080031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42216 + ... + 43798.

It is an arithmetic number, because the mean of its divisors is an integer number (8814960).

Almost surely, 2^68080081 is an apocalyptic number.

It is an amenable number.

68080081 is a deficient number, since it is larger than the sum of its proper divisors (2439599).

68080081 is a wasteful number, since it uses less digits than its factorization.

68080081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 68080081 is about 8251.0654463530. The cubic root of 68080081 is about 408.3256743068.

The spelling of 68080081 in words is "sixty-eight million, eighty thousand, eighty-one".