4749565891 has 16 divisors (see below), whose sum is σ = 5482572480. Its totient is φ = 4030248960.

The previous prime is 4749565853. The next prime is 4749565897. The reversal of 4749565891 is 1985659474.

It is a cyclic number.

It is not a de Polignac number, because 4749565891 - 2⁷ = 4749565763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4749565897) 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 15 ways as a sum of consecutive naturals, for example, 1311315 + ... + 1314931.

It is an arithmetic number, because the mean of its divisors is an integer number (342660780).

Almost surely, 2^4749565891 is an apocalyptic number.

4749565891 is a deficient number, since it is larger than the sum of its proper divisors (733006589).

4749565891 is a wasteful number, since it uses less digits than its factorization.

4749565891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5454.

The product of its digits is 10886400, while the sum is 58.

The square root of 4749565891 is about 68917.0943307972. The cubic root of 4749565891 is about 1680.9364925839.

The spelling of 4749565891 in words is "four billion, seven hundred forty-nine million, five hundred sixty-five thousand, eight hundred ninety-one".