2779426379 has 2 divisors, whose sum is σ = 2779426380. Its totient is φ = 2779426378.

The previous prime is 2779426333. The next prime is 2779426393. The reversal of 2779426379 is 9736249772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2779426379 is a prime.

It is not a weakly prime, because it can be changed into another prime (2779426399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389713189 + 1389713190.

It is an arithmetic number, because the mean of its divisors is an integer number (1389713190).

Almost surely, 2^2779426379 is an apocalyptic number.

2779426379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2779426379 is an equidigital number, since it uses as much as digits as its factorization.

2779426379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8001504, while the sum is 56.

The square root of 2779426379 is about 52720.2653540363. The cubic root of 2779426379 is about 1405.9991506625. Note that the first 3 decimals are identical.

The spelling of 2779426379 in words is "two billion, seven hundred seventy-nine million, four hundred twenty-six thousand, three hundred seventy-nine".