2013649837 has 2 divisors, whose sum is σ = 2013649838. Its totient is φ = 2013649836.

The previous prime is 2013649819. The next prime is 2013649861. The reversal of 2013649837 is 7389463102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1823375401 + 190274436 = 42701^2 + 13794^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013649837 - 2¹¹ = 2013647789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013649793 and 2013649802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013649817) 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, 1006824918 + 1006824919.

It is an arithmetic number, because the mean of its divisors is an integer number (1006824919).

Almost surely, 2^2013649837 is an apocalyptic number.

It is an amenable number.

2013649837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013649837 is an equidigital number, since it uses as much as digits as its factorization.

2013649837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 2013649837 is about 44873.7098644630. The cubic root of 2013649837 is about 1262.7808399446.

The spelling of 2013649837 in words is "two billion, thirteen million, six hundred forty-nine thousand, eight hundred thirty-seven".