2649061907773 has 6 divisors (see below), whose sum is σ = 2743558766234. Its totient is φ = 2557714944624.

The previous prime is 2649061907747. The next prime is 2649061907777. The reversal of 2649061907773 is 3777091609462.

2649061907773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 429834961924 + 2219226945849 = 655618^2 + 1489707^2 .

It is not a de Polignac number, because 2649061907773 - 2¹³ = 2649061899581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649061907777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1574946786 + ... + 1574948467.

Almost surely, 2^{2649061907773} is an apocalyptic number.

It is an amenable number.

2649061907773 is a deficient number, since it is larger than the sum of its proper divisors (94496858461).

2649061907773 is an equidigital number, since it uses as much as digits as its factorization.

2649061907773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149895311 (or 3149895282 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 61.

The spelling of 2649061907773 in words is "two trillion, six hundred forty-nine billion, sixty-one million, nine hundred seven thousand, seven hundred seventy-three".