2782412805 has 16 divisors (see below), whose sum is σ = 4461166080. Its totient is φ = 1480851648.

The previous prime is 2782412761. The next prime is 2782412819. The reversal of 2782412805 is 5082142872.

It is not a de Polignac number, because 2782412805 - 2⁹ = 2782412293 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 186442 + ... + 200811.

It is an arithmetic number, because the mean of its divisors is an integer number (278822880).

Almost surely, 2^2782412805 is an apocalyptic number.

It is an amenable number.

2782412805 is a deficient number, since it is larger than the sum of its proper divisors (1678753275).

2782412805 is a wasteful number, since it uses less digits than its factorization.

2782412805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387740.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2782412805 is about 52748.5810709634. The cubic root of 2782412805 is about 1406.5025410349.

The spelling of 2782412805 in words is "two billion, seven hundred eighty-two million, four hundred twelve thousand, eight hundred five".