3420111649 has 2 divisors, whose sum is σ = 3420111650. Its totient is φ = 3420111648.

The previous prime is 3420111647. The next prime is 3420111679. The reversal of 3420111649 is 9461110243.

3420111649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2277198400 + 1142913249 = 47720^2 + 33807^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420111649 - 2¹ = 3420111647 is a prime.

Together with 3420111647, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3420111649.

It is not a weakly prime, because it can be changed into another prime (3420111641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710055824 + 1710055825.

It is an arithmetic number, because the mean of its divisors is an integer number (1710055825).

Almost surely, 2^3420111649 is an apocalyptic number.

It is an amenable number.

3420111649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420111649 is an equidigital number, since it uses as much as digits as its factorization.

3420111649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3420111649 is about 58481.7206398717. The cubic root of 3420111649 is about 1506.6536495849.

The spelling of 3420111649 in words is "three billion, four hundred twenty million, one hundred eleven thousand, six hundred forty-nine".