2068146909 has 6 divisors (see below), whose sum is σ = 2987323326. Its totient is φ = 1378764600.

The previous prime is 2068146907. The next prime is 2068146929. The reversal of 2068146909 is 9096418602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1905584409 + 162562500 = 43653^2 + 12750^2 .

It is not a de Polignac number, because 2068146909 - 2¹ = 2068146907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068146901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114897042 + ... + 114897059.

It is an arithmetic number, because the mean of its divisors is an integer number (497887221).

Almost surely, 2^2068146909 is an apocalyptic number.

It is an amenable number.

2068146909 is a deficient number, since it is larger than the sum of its proper divisors (919176417).

2068146909 is a wasteful number, since it uses less digits than its factorization.

2068146909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229794107 (or 229794104 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2068146909 is about 45476.8832375307. The cubic root of 2068146909 is about 1274.0714826806.

The spelling of 2068146909 in words is "two billion, sixty-eight million, one hundred forty-six thousand, nine hundred nine".