68801691 has 8 divisors (see below), whose sum is σ = 104840704. Its totient is φ = 39315240.

The previous prime is 68801651. The next prime is 68801713. The reversal of 68801691 is 19610886.

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

It is not a de Polignac number, because 68801691 - 2¹⁴ = 68785307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68801651) 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 7 ways as a sum of consecutive naturals, for example, 1638115 + ... + 1638156.

It is an arithmetic number, because the mean of its divisors is an integer number (13105088).

Almost surely, 2^68801691 is an apocalyptic number.

68801691 is a deficient number, since it is larger than the sum of its proper divisors (36039013).

68801691 is a wasteful number, since it uses less digits than its factorization.

68801691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276281.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 68801691 is about 8294.6784747813. The cubic root of 68801691 is about 409.7632799693.

The spelling of 68801691 in words is "sixty-eight million, eight hundred one thousand, six hundred ninety-one".