822054781649 has 8 divisors (see below), whose sum is σ = 828102700800. Its totient is φ = 816026032800.

The previous prime is 822054781621. The next prime is 822054781663. The reversal of 822054781649 is 946187450228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 822054781649 - 2³² = 817759814353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 822054781594 and 822054781603.

It is not an unprimeable number, because it can be changed into a prime (822054781609) 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 7 ways as a sum of consecutive naturals, for example, 4706492 + ... + 4878029.

It is an arithmetic number, because the mean of its divisors is an integer number (103512837600).

Almost surely, 2^822054781649 is an apocalyptic number.

It is an amenable number.

822054781649 is a deficient number, since it is larger than the sum of its proper divisors (6047919151).

822054781649 is a wasteful number, since it uses less digits than its factorization.

822054781649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9585151.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 822054781649 in words is "eight hundred twenty-two billion, fifty-four million, seven hundred eighty-one thousand, six hundred forty-nine".