822013291208 has 36 divisors (see below), whose sum is σ = 1626760536795. Its totient is φ = 389351637360.

The previous prime is 822013291207. The next prime is 822013291213. The reversal of 822013291208 is 802192310228.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 411006645604 + 411006645604 = 641098^2 + 641098^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=641098.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (822013291207) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 48715013 + ... + 48731883.

Almost surely, 2^822013291208 is an apocalyptic number.

It is an amenable number.

822013291208 is a deficient number, since it is larger than the sum of its proper divisors (804747245587).

822013291208 is an frugal number, since it uses more digits than its factorization.

822013291208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33786 (or 16892 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 822013291208 in words is "eight hundred twenty-two billion, thirteen million, two hundred ninety-one thousand, two hundred eight".