2694855745 has 4 divisors (see below), whose sum is σ = 3233826900. Its totient is φ = 2155884592.

The previous prime is 2694855679. The next prime is 2694855767. The reversal of 2694855745 is 5475584962.

It is a Cunningham number, because it is equal to 51912²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5475584962 = 2 ⋅2737792481.

It can be written as a sum of positive squares in 2 ways, for example, as 970197904 + 1724657841 = 31148^2 + 41529^2 .

It is a cyclic number.

It is not a de Polignac number, because 2694855745 - 2¹⁹ = 2694331457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269485570 + ... + 269485579.

It is an arithmetic number, because the mean of its divisors is an integer number (808456725).

Almost surely, 2^2694855745 is an apocalyptic number.

It is an amenable number.

2694855745 is a deficient number, since it is larger than the sum of its proper divisors (538971155).

2694855745 is an equidigital number, since it uses as much as digits as its factorization.

2694855745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538971154.

The product of its digits is 12096000, while the sum is 55.

The square root of 2694855745 is about 51912.0000096317. Note that the first 5 decimals coincide. The cubic root of 2694855745 is about 1391.5917353770.

The spelling of 2694855745 in words is "two billion, six hundred ninety-four million, eight hundred fifty-five thousand, seven hundred forty-five".