822082156785 has 12 divisors (see below), whose sum is σ = 1424942405172. Its totient is φ = 438443816928.

The previous prime is 822082156771. The next prime is 822082156807. The reversal of 822082156785 is 587651280228.

It can be written as a sum of positive squares in 2 ways, for example, as 522299626209 + 299782530576 = 722703^2 + 547524^2 .

It is not a de Polignac number, because 822082156785 - 2⁴ = 822082156769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9134246142 + ... + 9134246231.

It is an arithmetic number, because the mean of its divisors is an integer number (118745200431).

Almost surely, 2^822082156785 is an apocalyptic number.

It is an amenable number.

822082156785 is a deficient number, since it is larger than the sum of its proper divisors (602860248387).

822082156785 is a wasteful number, since it uses less digits than its factorization.

822082156785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18268492384 (or 18268492381 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 822082156785 in words is "eight hundred twenty-two billion, eighty-two million, one hundred fifty-six thousand, seven hundred eighty-five".