4146729217 has 8 divisors (see below), whose sum is σ = 4249568232. Its totient is φ = 4043971200.

The previous prime is 4146729161. The next prime is 4146729259. The reversal of 4146729217 is 7129276414.

It can be written as a sum of positive squares in 4 ways, for example, as 4648336 + 4142080881 = 2156^2 + 64359^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4146729217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4146729277) 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, 90867 + ... + 128647.

It is an arithmetic number, because the mean of its divisors is an integer number (531196029).

Almost surely, 2^4146729217 is an apocalyptic number.

It is an amenable number.

4146729217 is a deficient number, since it is larger than the sum of its proper divisors (102839015).

4146729217 is a wasteful number, since it uses less digits than its factorization.

4146729217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40499.

The product of its digits is 169344, while the sum is 43.

The square root of 4146729217 is about 64395.1024302314. The cubic root of 4146729217 is about 1606.5782835964.

The spelling of 4146729217 in words is "four billion, one hundred forty-six million, seven hundred twenty-nine thousand, two hundred seventeen".