4949493889 has 2 divisors, whose sum is σ = 4949493890. Its totient is φ = 4949493888.

The previous prime is 4949493841. The next prime is 4949493943. The reversal of 4949493889 is 9883949494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4507779600 + 441714289 = 67140^2 + 21017^2 .

It is a cyclic number.

It is not a de Polignac number, because 4949493889 - 2⁹ = 4949493377 is a prime.

It is not a weakly prime, because it can be changed into another prime (4949493389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474746944 + 2474746945.

It is an arithmetic number, because the mean of its divisors is an integer number (2474746945).

Almost surely, 2^4949493889 is an apocalyptic number.

It is an amenable number.

4949493889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4949493889 is an equidigital number, since it uses as much as digits as its factorization.

4949493889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80621568, while the sum is 67.

The square root of 4949493889 is about 70352.6395311505. The cubic root of 4949493889 is about 1704.1988351636.

The spelling of 4949493889 in words is "four billion, nine hundred forty-nine million, four hundred ninety-three thousand, eight hundred eighty-nine".