4168268645 has 8 divisors (see below), whose sum is σ = 5023391256. Its totient is φ = 3320302336.

The previous prime is 4168268617. The next prime is 4168268647. The reversal of 4168268645 is 5468628614.

It can be written as a sum of positive squares in 4 ways, for example, as 145924 + 4168122721 = 382^2 + 64561^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4168268645 - 2¹⁴ = 4168252261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4168268593 and 4168268602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4168268647) 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 7 ways as a sum of consecutive naturals, for example, 1787792 + ... + 1790121.

It is an arithmetic number, because the mean of its divisors is an integer number (627923907).

Almost surely, 2^4168268645 is an apocalyptic number.

It is an amenable number.

4168268645 is a deficient number, since it is larger than the sum of its proper divisors (855122611).

4168268645 is a wasteful number, since it uses less digits than its factorization.

4168268645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578151.

The product of its digits is 2211840, while the sum is 50.

The square root of 4168268645 is about 64562.1301151070. The cubic root of 4168268645 is about 1609.3551736622.

The spelling of 4168268645 in words is "four billion, one hundred sixty-eight million, two hundred sixty-eight thousand, six hundred forty-five".