2782557780256 has 24 divisors (see below), whose sum is σ = 5478941548080. Its totient is φ = 1391080561728.

The previous prime is 2782557780241. The next prime is 2782557780271. The reversal of 2782557780256 is 6520877552872.

2782557780256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2782557780241) and next prime (2782557780271).

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, 5969646 + ... + 6418861.

It is an arithmetic number, because the mean of its divisors is an integer number (228289231170).

Almost surely, 2^{2782557780256} is an apocalyptic number.

It is an amenable number.

2782557780256 is a deficient number, since it is larger than the sum of its proper divisors (2696383767824).

2782557780256 is a wasteful number, since it uses less digits than its factorization.

2782557780256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12395536 (or 12395528 counting only the distinct ones).

The product of its (nonzero) digits is 131712000, while the sum is 64.

The spelling of 2782557780256 in words is "two trillion, seven hundred eighty-two billion, five hundred fifty-seven million, seven hundred eighty thousand, two hundred fifty-six".