4428089161 has 32 divisors (see below), whose sum is σ = 4897331712. Its totient is φ = 3987118080.

The previous prime is 4428089153. The next prime is 4428089173. The reversal of 4428089161 is 1619808244.

It is a cyclic number.

It is not a de Polignac number, because 4428089161 - 2³ = 4428089153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4428089111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9689245 + ... + 9689701.

It is an arithmetic number, because the mean of its divisors is an integer number (153041616).

Almost surely, 2^4428089161 is an apocalyptic number.

It is an amenable number.

4428089161 is a deficient number, since it is larger than the sum of its proper divisors (469242551).

4428089161 is a wasteful number, since it uses less digits than its factorization.

4428089161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 4428089161 is about 66543.8889831365. Note that the first 3 decimals coincide. The cubic root of 4428089161 is about 1642.1221240659.

The spelling of 4428089161 in words is "four billion, four hundred twenty-eight million, eighty-nine thousand, one hundred sixty-one".