4220478771 has 16 divisors (see below), whose sum is σ = 5886366720. Its totient is φ = 2684721600.

The previous prime is 4220478751. The next prime is 4220478793. The reversal of 4220478771 is 1778740224.

It is not a de Polignac number, because 4220478771 - 2⁵ = 4220478739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4220478751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46555 + ... + 102996.

It is an arithmetic number, because the mean of its divisors is an integer number (367897920).

Almost surely, 2^4220478771 is an apocalyptic number.

4220478771 is a deficient number, since it is larger than the sum of its proper divisors (1665887949).

4220478771 is a wasteful number, since it uses less digits than its factorization.

4220478771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149986.

The product of its (nonzero) digits is 175616, while the sum is 42.

The square root of 4220478771 is about 64965.2120061191. The cubic root of 4220478771 is about 1616.0466999287.

The spelling of 4220478771 in words is "four billion, two hundred twenty million, four hundred seventy-eight thousand, seven hundred seventy-one".