7982785217611 has 16 divisors (see below), whose sum is σ = 8359819801344. Its totient is φ = 7608250435104.

The previous prime is 7982785217579. The next prime is 7982785217633. The reversal of 7982785217611 is 1167125872897.

It is a cyclic number.

It is not a de Polignac number, because 7982785217611 - 2⁵ = 7982785217579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7982785217411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147837960 + ... + 147891946.

It is an arithmetic number, because the mean of its divisors is an integer number (522488737584).

Almost surely, 2^{7982785217611} is an apocalyptic number.

7982785217611 is a deficient number, since it is larger than the sum of its proper divisors (377034583733).

7982785217611 is a wasteful number, since it uses less digits than its factorization.

7982785217611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77010.

The product of its digits is 23708160, while the sum is 64.

The spelling of 7982785217611 in words is "seven trillion, nine hundred eighty-two billion, seven hundred eighty-five million, two hundred seventeen thousand, six hundred eleven".