4991934379 has 2 divisors, whose sum is σ = 4991934380. Its totient is φ = 4991934378.

The previous prime is 4991934341. The next prime is 4991934407. The reversal of 4991934379 is 9734391994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4991934379 - 2⁷ = 4991934251 is a prime.

It is not a weakly prime, because it can be changed into another prime (4991934319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495967189 + 2495967190.

It is an arithmetic number, because the mean of its divisors is an integer number (2495967190).

Almost surely, 2^4991934379 is an apocalyptic number.

4991934379 is a deficient number, since it is larger than the sum of its proper divisors (1).

4991934379 is an equidigital number, since it uses as much as digits as its factorization.

4991934379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 58.

The square root of 4991934379 is about 70653.6225469013. The cubic root of 4991934379 is about 1709.0559839675.

The spelling of 4991934379 in words is "four billion, nine hundred ninety-one million, nine hundred thirty-four thousand, three hundred seventy-nine".