2790755778 has 8 divisors (see below), whose sum is σ = 5581511568. Its totient is φ = 930251924.

The previous prime is 2790755743. The next prime is 2790755783. The reversal of 2790755778 is 8775570972.

2790755778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2790755778 is an admirable number.

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, 232562976 + ... + 232562987.

It is an arithmetic number, because the mean of its divisors is an integer number (697688946).

Almost surely, 2^2790755778 is an apocalyptic number.

2790755778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2790755778 is a wasteful number, since it uses less digits than its factorization.

2790755778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465125968.

The product of its (nonzero) digits is 8643600, while the sum is 57.

The square root of 2790755778 is about 52827.6043181971. The cubic root of 2790755778 is about 1407.9069221276.

The spelling of 2790755778 in words is "two billion, seven hundred ninety million, seven hundred fifty-five thousand, seven hundred seventy-eight".