4979278099 has 2 divisors, whose sum is σ = 4979278100. Its totient is φ = 4979278098.

The previous prime is 4979278093. The next prime is 4979278133. The reversal of 4979278099 is 9908729794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4979278099 - 2⁹ = 4979277587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4979278099.

It is not a weakly prime, because it can be changed into another prime (4979278093) 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, 2489639049 + 2489639050.

It is an arithmetic number, because the mean of its divisors is an integer number (2489639050).

Almost surely, 2^4979278099 is an apocalyptic number.

4979278099 is a deficient number, since it is larger than the sum of its proper divisors (1).

4979278099 is an equidigital number, since it uses as much as digits as its factorization.

4979278099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 64.

The square root of 4979278099 is about 70564.0000212573. Note that the first 4 decimals coincide. The cubic root of 4979278099 is about 1707.6104122842.

The spelling of 4979278099 in words is "four billion, nine hundred seventy-nine million, two hundred seventy-eight thousand, ninety-nine".