2068537318849 has 6 divisors (see below), whose sum is σ = 2117761572786. Its totient is φ = 2020431798000.

The previous prime is 2068537318831. The next prime is 2068537318877. The reversal of 2068537318849 is 9488137358602.

It can be written as a sum of positive squares in only one way, i.e., 1921287071025 + 147250247824 = 1386105^2 + 383732^2 .

It is not a de Polignac number, because 2068537318849 - 2¹³ = 2068537310657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068537348849) 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 in 5 ways as a sum of consecutive naturals, for example, 559364652 + ... + 559368349.

It is an arithmetic number, because the mean of its divisors is an integer number (352960262131).

It is a 1-persistent number, because it is pandigital, but 2⋅2068537318849 = 4137074637698 is not.

Almost surely, 2^{2068537318849} is an apocalyptic number.

It is an amenable number.

2068537318849 is a deficient number, since it is larger than the sum of its proper divisors (49224253937).

2068537318849 is an equidigital number, since it uses as much as digits as its factorization.

2068537318849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118733087 (or 1118733044 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 2068537318849 in words is "two trillion, sixty-eight billion, five hundred thirty-seven million, three hundred eighteen thousand, eight hundred forty-nine".