4944708891 has 6 divisors (see below), whose sum is σ = 7142357300. Its totient is φ = 3296472588.

The previous prime is 4944708863. The next prime is 4944708907. The reversal of 4944708891 is 1988074494.

4944708891 is a `hidden beast` number, since 4 + 9 + 4 + 470 + 88 + 91 = 666.

It is not a de Polignac number, because 4944708891 - 2¹¹ = 4944706843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4944701891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 274706041 + ... + 274706058.

Almost surely, 2^4944708891 is an apocalyptic number.

4944708891 is a deficient number, since it is larger than the sum of its proper divisors (2197648409).

4944708891 is a wasteful number, since it uses less digits than its factorization.

4944708891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549412105 (or 549412102 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 4944708891 is about 70318.6240693033. The cubic root of 4944708891 is about 1703.6494714327.

The spelling of 4944708891 in words is "four billion, nine hundred forty-four million, seven hundred eight thousand, eight hundred ninety-one".