822046628642 has 18 divisors (see below), whose sum is σ = 1274191115697. Its totient is φ = 397745264400.

The previous prime is 822046628639. The next prime is 822046628681. The reversal of 822046628642 is 246826640228.

It can be written as a sum of positive squares in 2 ways, for example, as 647189679361 + 174856949281 = 804481^2 + 418159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=641111.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39738542 + ... + 39759222.

Almost surely, 2^822046628642 is an apocalyptic number.

822046628642 is a deficient number, since it is larger than the sum of its proper divisors (452144487055).

822046628642 is an frugal number, since it uses more digits than its factorization.

822046628642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41426 (or 20714 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 50.

Multiplying 822046628642 by its sum of digits (50), we get a square (41102331432100 = 6411110²).

The spelling of 822046628642 in words is "eight hundred twenty-two billion, forty-six million, six hundred twenty-eight thousand, six hundred forty-two".