2685134495045 has 16 divisors (see below), whose sum is σ = 3301140210480. Its totient is φ = 2095467417600.

The previous prime is 2685134495023. The next prime is 2685134495063. The reversal of 2685134495045 is 5405944315862.

It is a Cunningham number, because it is equal to 1638638²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 806263918084 + 1878870576961 = 897922^2 + 1370719^2 .

It is not a de Polignac number, because 2685134495045 - 2¹² = 2685134490949 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 978221 + ... + 2515389.

It is an arithmetic number, because the mean of its divisors is an integer number (206321263155).

Almost surely, 2^{2685134495045} is an apocalyptic number.

It is an amenable number.

2685134495045 is a deficient number, since it is larger than the sum of its proper divisors (616005715435).

2685134495045 is a wasteful number, since it uses less digits than its factorization.

2685134495045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545736.

The product of its (nonzero) digits is 20736000, while the sum is 56.

The spelling of 2685134495045 in words is "two trillion, six hundred eighty-five billion, one hundred thirty-four million, four hundred ninety-five thousand, forty-five".