2768558449 has 4 divisors (see below), whose sum is σ = 2770594020. Its totient is φ = 2766522880.

The previous prime is 2768558431. The next prime is 2768558479. The reversal of 2768558449 is 9448558672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 829036849 + 1939521600 = 28793^2 + 44040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2768558449 - 2⁵ = 2768558417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2768558393 and 2768558402.

It is not an unprimeable number, because it can be changed into a prime (2768558479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015744 + ... + 1018465.

It is an arithmetic number, because the mean of its divisors is an integer number (692648505).

Almost surely, 2^2768558449 is an apocalyptic number.

It is an amenable number.

2768558449 is a deficient number, since it is larger than the sum of its proper divisors (2035571).

2768558449 is a wasteful number, since it uses less digits than its factorization.

2768558449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035570.

The product of its digits is 19353600, while the sum is 58.

The square root of 2768558449 is about 52617.0927456088. The cubic root of 2768558449 is about 1404.1642085260.

The spelling of 2768558449 in words is "two billion, seven hundred sixty-eight million, five hundred fifty-eight thousand, four hundred forty-nine".