2549069779 has 2 divisors, whose sum is σ = 2549069780. Its totient is φ = 2549069778.

The previous prime is 2549069771. The next prime is 2549069791. The reversal of 2549069779 is 9779609452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2549069779 - 2³ = 2549069771 is a prime.

It is a super-2 number, since 2×2549069779² = 12995513476422217682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2549069771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274534889 + 1274534890.

It is an arithmetic number, because the mean of its divisors is an integer number (1274534890).

Almost surely, 2^2549069779 is an apocalyptic number.

2549069779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549069779 is an equidigital number, since it uses as much as digits as its factorization.

2549069779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The square root of 2549069779 is about 50488.3132912954. The cubic root of 2549069779 is about 1366.0310616553.

The spelling of 2549069779 in words is "two billion, five hundred forty-nine million, sixty-nine thousand, seven hundred seventy-nine".