68117177 has 4 divisors (see below), whose sum is σ = 68257536. Its totient is φ = 67976820.

The previous prime is 68117171. The next prime is 68117209. The reversal of 68117177 is 77171186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68117177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68117177.

It is not an unprimeable number, because it can be changed into a prime (68117171) 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 3 ways as a sum of consecutive naturals, for example, 69449 + ... + 70422.

It is an arithmetic number, because the mean of its divisors is an integer number (17064384).

Almost surely, 2^68117177 is an apocalyptic number.

It is an amenable number.

68117177 is a deficient number, since it is larger than the sum of its proper divisors (140359).

68117177 is a wasteful number, since it uses less digits than its factorization.

68117177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140358.

The product of its digits is 16464, while the sum is 38.

The square root of 68117177 is about 8253.3130923284. The cubic root of 68117177 is about 408.3998247222.

The spelling of 68117177 in words is "sixty-eight million, one hundred seventeen thousand, one hundred seventy-seven".