4979889793 has 2 divisors, whose sum is σ = 4979889794. Its totient is φ = 4979889792.

The previous prime is 4979889779. The next prime is 4979889809. The reversal of 4979889793 is 3979889794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4756447089 + 223442704 = 68967^2 + 14948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4979889793 is a prime.

It is not a weakly prime, because it can be changed into another prime (4979889293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489944896 + 2489944897.

It is an arithmetic number, because the mean of its divisors is an integer number (2489944897).

Almost surely, 2^4979889793 is an apocalyptic number.

It is an amenable number.

4979889793 is a deficient number, since it is larger than the sum of its proper divisors (1).

4979889793 is an equidigital number, since it uses as much as digits as its factorization.

4979889793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246903552, while the sum is 73.

The square root of 4979889793 is about 70568.3342087653. The cubic root of 4979889793 is about 1707.6803348883.

Subtracting from 4979889793 its reverse (3979889794), we obtain a palindrome (999999999).

The spelling of 4979889793 in words is "four billion, nine hundred seventy-nine million, eight hundred eighty-nine thousand, seven hundred ninety-three".