4166421263 has 4 divisors (see below), whose sum is σ = 4171925880. Its totient is φ = 4160916648.

The previous prime is 4166421257. The next prime is 4166421269. The reversal of 4166421263 is 3621246614.

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

It is an interprime number because it is at equal distance from previous prime (4166421257) and next prime (4166421269).

It is a cyclic number.

It is not a de Polignac number, because 4166421263 - 2⁴ = 4166421247 is a prime.

It is a super-2 number, since 2×4166421263² = 34718132281557030338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4166421269) 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, 2751173 + ... + 2752686.

It is an arithmetic number, because the mean of its divisors is an integer number (1042981470).

Almost surely, 2^4166421263 is an apocalyptic number.

4166421263 is a deficient number, since it is larger than the sum of its proper divisors (5504617).

4166421263 is an equidigital number, since it uses as much as digits as its factorization.

4166421263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504616.

The product of its digits is 41472, while the sum is 35.

The square root of 4166421263 is about 64547.8215201722. The cubic root of 4166421263 is about 1609.1173824378.

Adding to 4166421263 its reverse (3621246614), we get a palindrome (7787667877).

The spelling of 4166421263 in words is "four billion, one hundred sixty-six million, four hundred twenty-one thousand, two hundred sixty-three".