4049870789 has 2 divisors, whose sum is σ = 4049870790. Its totient is φ = 4049870788.

The previous prime is 4049870777. The next prime is 4049870791. The reversal of 4049870789 is 9870789404.

4049870789 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 can be written as a sum of positive squares in only one way, i.e., 4037585764 + 12285025 = 63542^2 + 3505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4049870789 is a prime.

Together with 4049870791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4049870719) 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, 2024935394 + 2024935395.

It is an arithmetic number, because the mean of its divisors is an integer number (2024935395).

Almost surely, 2^4049870789 is an apocalyptic number.

It is an amenable number.

4049870789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4049870789 is an equidigital number, since it uses as much as digits as its factorization.

4049870789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 4049870789 is about 63638.5951211998. The cubic root of 4049870789 is about 1593.9709020904.

The spelling of 4049870789 in words is "four billion, forty-nine million, eight hundred seventy thousand, seven hundred eighty-nine".