4139976979 has 2 divisors, whose sum is σ = 4139976980. Its totient is φ = 4139976978.

The previous prime is 4139976943. The next prime is 4139976989. The reversal of 4139976979 is 9796799314.

4139976979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4139976979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4139976979.

It is not a weakly prime, because it can be changed into another prime (4139976989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069988489 + 2069988490.

It is an arithmetic number, because the mean of its divisors is an integer number (2069988490).

Almost surely, 2^4139976979 is an apocalyptic number.

4139976979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4139976979 is an equidigital number, since it uses as much as digits as its factorization.

4139976979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23147208, while the sum is 64.

The square root of 4139976979 is about 64342.6528750564. The cubic root of 4139976979 is about 1605.7057973760.

The spelling of 4139976979 in words is "four billion, one hundred thirty-nine million, nine hundred seventy-six thousand, nine hundred seventy-nine".