68119681 has 8 divisors (see below), whose sum is σ = 79320384. Its totient is φ = 57286320.

The previous prime is 68119673. The next prime is 68119691. The reversal of 68119681 is 18691186.

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

It is not a de Polignac number, because 68119681 - 2³ = 68119673 is a prime.

It is a super-2 number, since 2×68119681² = 9280581879083522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68119651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 91435 + ... + 92176.

It is an arithmetic number, because the mean of its divisors is an integer number (9915048).

Almost surely, 2^68119681 is an apocalyptic number.

It is an amenable number.

68119681 is a deficient number, since it is larger than the sum of its proper divisors (11200703).

68119681 is a wasteful number, since it uses less digits than its factorization.

68119681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183671.

The product of its digits is 20736, while the sum is 40.

The square root of 68119681 is about 8253.4647875907. The cubic root of 68119681 is about 408.4048289452.

The spelling of 68119681 in words is "sixty-eight million, one hundred nineteen thousand, six hundred eighty-one".