2744808857 has 16 divisors (see below), whose sum is σ = 3158974464. Its totient is φ = 2336202000.

The previous prime is 2744808841. The next prime is 2744808893. The reversal of 2744808857 is 7588084472.

It is a cyclic number.

It is not a de Polignac number, because 2744808857 - 2⁴ = 2744808841 is a prime.

It is a super-3 number, since 3×2744808857³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2744808799 and 2744808808.

It is not an unprimeable number, because it can be changed into a prime (2744808557) 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 in 15 ways as a sum of consecutive naturals, for example, 922382 + ... + 925352.

It is an arithmetic number, because the mean of its divisors is an integer number (197435904).

Almost surely, 2^2744808857 is an apocalyptic number.

It is an amenable number.

2744808857 is a deficient number, since it is larger than the sum of its proper divisors (414165607).

2744808857 is a wasteful number, since it uses less digits than its factorization.

2744808857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860.

The product of its (nonzero) digits is 4014080, while the sum is 53.

The square root of 2744808857 is about 52390.9234219058. The cubic root of 2744808857 is about 1400.1375472001.

The spelling of 2744808857 in words is "two billion, seven hundred forty-four million, eight hundred eight thousand, eight hundred fifty-seven".