2782206656 has 28 divisors (see below), whose sum is σ = 5529635880. Its totient is φ = 1388912640.

The previous prime is 2782206643. The next prime is 2782206673. The reversal of 2782206656 is 6566022872.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 7115 + ... + 74933.

Almost surely, 2^2782206656 is an apocalyptic number.

It is an amenable number.

2782206656 is a deficient number, since it is larger than the sum of its proper divisors (2747429224).

2782206656 is an equidigital number, since it uses as much as digits as its factorization.

2782206656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68472 (or 68462 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 2782206656 is about 52746.6269632476. The cubic root of 2782206656 is about 1406.4678042466.

The spelling of 2782206656 in words is "two billion, seven hundred eighty-two million, two hundred six thousand, six hundred fifty-six".