2758049845 has 4 divisors (see below), whose sum is σ = 3309659820. Its totient is φ = 2206439872.

The previous prime is 2758049839. The next prime is 2758049857. The reversal of 2758049845 is 5489408572.

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 766569969 + 1991479876 = 27687^2 + 44626^2 .

It is a cyclic number.

It is not a de Polignac number, because 2758049845 - 2³ = 2758049837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2758049792 and 2758049801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275804980 + ... + 275804989.

It is an arithmetic number, because the mean of its divisors is an integer number (827414955).

Almost surely, 2^2758049845 is an apocalyptic number.

It is an amenable number.

2758049845 is a deficient number, since it is larger than the sum of its proper divisors (551609975).

2758049845 is an equidigital number, since it uses as much as digits as its factorization.

2758049845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551609974.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The square root of 2758049845 is about 52517.1385835139. The cubic root of 2758049845 is about 1402.3853628592.

The spelling of 2758049845 in words is "two billion, seven hundred fifty-eight million, forty-nine thousand, eight hundred forty-five".