4991773279 has 2 divisors, whose sum is σ = 4991773280. Its totient is φ = 4991773278.

The previous prime is 4991773273. The next prime is 4991773331. The reversal of 4991773279 is 9723771994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4991773279 - 2¹¹ = 4991771231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4991773273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495886639 + 2495886640.

It is an arithmetic number, because the mean of its divisors is an integer number (2495886640).

Almost surely, 2^4991773279 is an apocalyptic number.

4991773279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4991773279 is an equidigital number, since it uses as much as digits as its factorization.

4991773279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 58.

The square root of 4991773279 is about 70652.4824687710. The cubic root of 4991773279 is about 1709.0375988513.

The spelling of 4991773279 in words is "four billion, nine hundred ninety-one million, seven hundred seventy-three thousand, two hundred seventy-nine".