68328861 has 16 divisors (see below), whose sum is σ = 92386944. Its totient is φ = 44915904.

The previous prime is 68328857. The next prime is 68328907. The reversal of 68328861 is 16882386.

68328861 = T₁₉₀ + T₁₉₁ + ... + T₇₄₆.

It is not a de Polignac number, because 68328861 - 2² = 68328857 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68328361) 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 15 ways as a sum of consecutive naturals, for example, 122395 + ... + 122951.

It is an arithmetic number, because the mean of its divisors is an integer number (5774184).

Almost surely, 2^68328861 is an apocalyptic number.

It is an amenable number.

68328861 is a deficient number, since it is larger than the sum of its proper divisors (24058083).

68328861 is a wasteful number, since it uses less digits than its factorization.

68328861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its digits is 110592, while the sum is 42.

The square root of 68328861 is about 8266.1273278362. The cubic root of 68328861 is about 408.8224411256.

The spelling of 68328861 in words is "sixty-eight million, three hundred twenty-eight thousand, eight hundred sixty-one".