4491043245 has 96 divisors (see below), whose sum is σ = 8773148160. Its totient is φ = 2166877440.

The previous prime is 4491043241. The next prime is 4491043259. The reversal of 4491043245 is 5423401944.

It is not a de Polignac number, because 4491043245 - 2² = 4491043241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491043241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4929340 + ... + 4930250.

It is an arithmetic number, because the mean of its divisors is an integer number (91386960).

Almost surely, 2^4491043245 is an apocalyptic number.

4491043245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4491043245 is a deficient number, since it is larger than the sum of its proper divisors (4282104915).

4491043245 is a wasteful number, since it uses less digits than its factorization.

4491043245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 4491043245 is about 67015.2463623018. The cubic root of 4491043245 is about 1649.8675430861.

The spelling of 4491043245 in words is "four billion, four hundred ninety-one million, forty-three thousand, two hundred forty-five".