4891335949 has 4 divisors (see below), whose sum is σ = 4892885536. Its totient is φ = 4889786364.

The previous prime is 4891335947. The next prime is 4891335971. The reversal of 4891335949 is 9495331984.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4891335949 - 2¹ = 4891335947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4891335949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891335947) 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 3 ways as a sum of consecutive naturals, for example, 770049 + ... + 776374.

It is an arithmetic number, because the mean of its divisors is an integer number (1223221384).

Almost surely, 2^4891335949 is an apocalyptic number.

It is an amenable number.

4891335949 is a deficient number, since it is larger than the sum of its proper divisors (1549587).

4891335949 is a wasteful number, since it uses less digits than its factorization.

4891335949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549586.

The product of its digits is 4199040, while the sum is 55.

The square root of 4891335949 is about 69938.0865408827. The cubic root of 4891335949 is about 1697.4975810794.

The spelling of 4891335949 in words is "four billion, eight hundred ninety-one million, three hundred thirty-five thousand, nine hundred forty-nine".