2779139003 has 2 divisors, whose sum is σ = 2779139004. Its totient is φ = 2779139002.

The previous prime is 2779138963. The next prime is 2779139047. The reversal of 2779139003 is 3009319772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2779139003 - 2⁶ = 2779138939 is a prime.

It is a super-2 number, since 2×2779139003² = 15447227195991668018, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2779133003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389569501 + 1389569502.

It is an arithmetic number, because the mean of its divisors is an integer number (1389569502).

Almost surely, 2^2779139003 is an apocalyptic number.

2779139003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2779139003 is an equidigital number, since it uses as much as digits as its factorization.

2779139003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 2779139003 is about 52717.5398041297. The cubic root of 2779139003 is about 1405.9506917021.

The spelling of 2779139003 in words is "two billion, seven hundred seventy-nine million, one hundred thirty-nine thousand, three".