68189799 has 8 divisors (see below), whose sum is σ = 90984832. Its totient is φ = 45427320.

The previous prime is 68189767. The next prime is 68189813. The reversal of 68189799 is 99798186.

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

It is not a de Polignac number, because 68189799 - 2⁵ = 68189767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68189599) 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, 2737 + ... + 11994.

It is an arithmetic number, because the mean of its divisors is an integer number (11373104).

Almost surely, 2^68189799 is an apocalyptic number.

68189799 is a deficient number, since it is larger than the sum of its proper divisors (22795033).

68189799 is a wasteful number, since it uses less digits than its factorization.

68189799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16277.

The product of its digits is 1959552, while the sum is 57.

The square root of 68189799 is about 8257.7114868467. The cubic root of 68189799 is about 408.5449094107.

The spelling of 68189799 in words is "sixty-eight million, one hundred eighty-nine thousand, seven hundred ninety-nine".