4491352691 has 6 divisors (see below), whose sum is σ = 5224634820. Its totient is φ = 3849730836.

The previous prime is 4491352661. The next prime is 4491352703. The reversal of 4491352691 is 1962531944.

4491352691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4491352691 - 2⁶ = 4491352627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4491352651) 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 5 ways as a sum of consecutive naturals, for example, 45830081 + ... + 45830178.

It is an arithmetic number, because the mean of its divisors is an integer number (870772470).

Almost surely, 2^4491352691 is an apocalyptic number.

4491352691 is a deficient number, since it is larger than the sum of its proper divisors (733282129).

4491352691 is an equidigital number, since it uses as much as digits as its factorization.

4491352691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91660273 (or 91660266 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 4491352691 is about 67017.5550956613. Note that the first 3 decimals coincide. The cubic root of 4491352691 is about 1649.9054357803.

The spelling of 4491352691 in words is "four billion, four hundred ninety-one million, three hundred fifty-two thousand, six hundred ninety-one".