68780183 has 2 divisors, whose sum is σ = 68780184. Its totient is φ = 68780182.

The previous prime is 68780111. The next prime is 68780219. The reversal of 68780183 is 38108786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68780183 - 2¹⁰ = 68779159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68780183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68780683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34390091 + 34390092.

It is an arithmetic number, because the mean of its divisors is an integer number (34390092).

Almost surely, 2^68780183 is an apocalyptic number.

68780183 is a deficient number, since it is larger than the sum of its proper divisors (1).

68780183 is an equidigital number, since it uses as much as digits as its factorization.

68780183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 68780183 is about 8293.3818795471. The cubic root of 68780183 is about 409.7205770114.

The spelling of 68780183 in words is "sixty-eight million, seven hundred eighty thousand, one hundred eighty-three".