2782557780255 has 128 divisors (see below), whose sum is σ = 5463699194880. Its totient is φ = 1332398592000.

The previous prime is 2782557780241. The next prime is 2782557780271. The reversal of 2782557780255 is 5520877552872.

2782557780255 is a `hidden beast` number, since 2 + 7 + 8 + 2 + 5 + 577 + 8 + 0 + 2 + 55 = 666.

It is not a de Polignac number, because 2782557780255 - 2¹³ = 2782557772063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2782557780192 and 2782557780201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 47123700 + ... + 47182710.

It is an arithmetic number, because the mean of its divisors is an integer number (42685149960).

Almost surely, 2^{2782557780255} is an apocalyptic number.

2782557780255 is a deficient number, since it is larger than the sum of its proper divisors (2681141414625).

2782557780255 is a wasteful number, since it uses less digits than its factorization.

2782557780255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59430 (or 59424 counting only the distinct ones).

The product of its (nonzero) digits is 109760000, while the sum is 63.

The spelling of 2782557780255 in words is "two trillion, seven hundred eighty-two billion, five hundred fifty-seven million, seven hundred eighty thousand, two hundred fifty-five".