4921616949 has 16 divisors (see below), whose sum is σ = 6918067200. Its totient is φ = 3103649136.

The previous prime is 4921616939. The next prime is 4921616951. The reversal of 4921616949 is 9496161294.

It is not a de Polignac number, because 4921616949 - 2²⁴ = 4904839733 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921616929) 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, 27949 + ... + 103074.

It is an arithmetic number, because the mean of its divisors is an integer number (432379200).

Almost surely, 2^4921616949 is an apocalyptic number.

It is an amenable number.

4921616949 is a deficient number, since it is larger than the sum of its proper divisors (1996450251).

4921616949 is a wasteful number, since it uses less digits than its factorization.

4921616949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131704.

The product of its digits is 839808, while the sum is 51.

The square root of 4921616949 is about 70154.2368570851. The cubic root of 4921616949 is about 1700.9933005911.

The spelling of 4921616949 in words is "four billion, nine hundred twenty-one million, six hundred sixteen thousand, nine hundred forty-nine".