4491321522 has 16 divisors (see below), whose sum is σ = 8983513632. Its totient is φ = 1496962080.

The previous prime is 4491321521. The next prime is 4491321539. The reversal of 4491321522 is 2251231944.

It is not an unprimeable number, because it can be changed into a prime (4491321521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44697 + ... + 104787.

It is an arithmetic number, because the mean of its divisors is an integer number (561469602).

Almost surely, 2^4491321522 is an apocalyptic number.

4491321522 is an abundant number, since it is smaller than the sum of its proper divisors (4492192110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4491321522 is a wasteful number, since it uses less digits than its factorization.

4491321522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72553.

The product of its digits is 17280, while the sum is 33.

The square root of 4491321522 is about 67017.3225517105. The cubic root of 4491321522 is about 1649.9016191112.

The spelling of 4491321522 in words is "four billion, four hundred ninety-one million, three hundred twenty-one thousand, five hundred twenty-two".