4266478217 has 4 divisors (see below), whose sum is σ = 4346977860. Its totient is φ = 4185978576.

The previous prime is 4266478213. The next prime is 4266478241. The reversal of 4266478217 is 7128746624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3736143376 + 530334841 = 61124^2 + 23029^2 .

It is a cyclic number.

It is not a de Polignac number, because 4266478217 - 2² = 4266478213 is a prime.

It is a super-2 number, since 2×4266478217² = 36405672752270998178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4266478213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40249742 + ... + 40249847.

It is an arithmetic number, because the mean of its divisors is an integer number (1086744465).

Almost surely, 2^4266478217 is an apocalyptic number.

It is an amenable number.

4266478217 is a deficient number, since it is larger than the sum of its proper divisors (80499643).

4266478217 is an equidigital number, since it uses as much as digits as its factorization.

4266478217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80499642.

The product of its digits is 903168, while the sum is 47.

The square root of 4266478217 is about 65318.2839410222. The cubic root of 4266478217 is about 1621.8966528651.

The spelling of 4266478217 in words is "four billion, two hundred sixty-six million, four hundred seventy-eight thousand, two hundred seventeen".