2069503649 has 2 divisors, whose sum is σ = 2069503650. Its totient is φ = 2069503648.

The previous prime is 2069503643. The next prime is 2069503661. The reversal of 2069503649 is 9463059602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983811600 + 85692049 = 44540^2 + 9257^2 .

It is a cyclic number.

It is not a de Polignac number, because 2069503649 - 2⁸ = 2069503393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2069503643) 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, 1034751824 + 1034751825.

It is an arithmetic number, because the mean of its divisors is an integer number (1034751825).

Almost surely, 2^2069503649 is an apocalyptic number.

It is an amenable number.

2069503649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069503649 is an equidigital number, since it uses as much as digits as its factorization.

2069503649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 2069503649 is about 45491.7976013259. The cubic root of 2069503649 is about 1274.3500260601.

The spelling of 2069503649 in words is "two billion, sixty-nine million, five hundred three thousand, six hundred forty-nine".