4720220643 has 16 divisors (see below), whose sum is σ = 6378255360. Its totient is φ = 3104654784.

The previous prime is 4720220623. The next prime is 4720220657. The reversal of 4720220643 is 3460220274.

It is not a de Polignac number, because 4720220643 - 2¹² = 4720216547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4720220643.

It is not an unprimeable number, because it can be changed into a prime (4720220623) 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 15 ways as a sum of consecutive naturals, for example, 104530 + ... + 142712.

It is an arithmetic number, because the mean of its divisors is an integer number (398640960).

Almost surely, 2^4720220643 is an apocalyptic number.

4720220643 is a deficient number, since it is larger than the sum of its proper divisors (1658034717).

4720220643 is a wasteful number, since it uses less digits than its factorization.

4720220643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38738.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 4720220643 is about 68703.8619220201. The cubic root of 4720220643 is about 1677.4674430113.

The spelling of 4720220643 in words is "four billion, seven hundred twenty million, two hundred twenty thousand, six hundred forty-three".