822149209602 has 90 divisors (see below), whose sum is σ = 2143204961337. Its totient is φ = 234876692736.

The previous prime is 822149209579. The next prime is 822149209631. The reversal of 822149209602 is 206902941228.

822149209602 is a `hidden beast` number, since 8 + 2 + 2 + 14 + 9 + 20 + 9 + 602 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 801098391681 + 21050817921 = 895041^2 + 145089^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=641151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 80779938 + ... + 80790114.

Almost surely, 2^822149209602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822149209602

822149209602 is an abundant number, since it is smaller than the sum of its proper divisors (1321055751735).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

822149209602 is an frugal number, since it uses more digits than its factorization.

822149209602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20382 (or 10189 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 822149209602 in words is "eight hundred twenty-two billion, one hundred forty-nine million, two hundred nine thousand, six hundred two".