2779113979 has 2 divisors, whose sum is σ = 2779113980. Its totient is φ = 2779113978.

The previous prime is 2779113937. The next prime is 2779114007. The reversal of 2779113979 is 9793119772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2779113979 - 2¹⁹ = 2778589691 is a prime.

It is not a weakly prime, because it can be changed into another prime (2779113479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389556989 + 1389556990.

It is an arithmetic number, because the mean of its divisors is an integer number (1389556990).

Almost surely, 2^2779113979 is an apocalyptic number.

2779113979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2779113979 is an equidigital number, since it uses as much as digits as its factorization.

2779113979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500282, while the sum is 55.

The square root of 2779113979 is about 52717.3024632331. The cubic root of 2779113979 is about 1405.9464718561.

The spelling of 2779113979 in words is "two billion, seven hundred seventy-nine million, one hundred thirteen thousand, nine hundred seventy-nine".