4289799521 has 24 divisors (see below), whose sum is σ = 5081593320. Its totient is φ = 3610075392.

The previous prime is 4289799467. The next prime is 4289799551. The reversal of 4289799521 is 1259979824.

It can be written as a sum of positive squares in 4 ways, for example, as 2568462400 + 1721337121 = 50680^2 + 41489^2 .

It is not a de Polignac number, because 4289799521 - 2¹⁰ = 4289798497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4289799551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 816515 + ... + 821751.

It is an arithmetic number, because the mean of its divisors is an integer number (211733055).

Almost surely, 2^4289799521 is an apocalyptic number.

It is an amenable number.

4289799521 is a deficient number, since it is larger than the sum of its proper divisors (791793799).

4289799521 is a wasteful number, since it uses less digits than its factorization.

4289799521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553 (or 5546 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 56.

The square root of 4289799521 is about 65496.5611387346. The cubic root of 4289799521 is about 1624.8464733536.

The spelling of 4289799521 in words is "four billion, two hundred eighty-nine million, seven hundred ninety-nine thousand, five hundred twenty-one".