202399396322 has 18 divisors (see below), whose sum is σ = 311224668129. Its totient is φ = 98718688080.

The previous prime is 202399396313. The next prime is 202399396357. The reversal of 202399396322 is 223693993202.

It can be written as a sum of positive squares in 2 ways, for example, as 144545196481 + 57854199841 = 380191^2 + 240529^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=318119.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 26081879 + ... + 26089637.

Almost surely, 2^202399396322 is an apocalyptic number.

202399396322 is a deficient number, since it is larger than the sum of its proper divisors (108825271807).

202399396322 is an frugal number, since it uses more digits than its factorization.

202399396322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15602 (or 7802 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 50.

Multiplying 202399396322 by its sum of digits (50), we get a square (10119969816100 = 3181190²).

The spelling of 202399396322 in words is "two hundred two billion, three hundred ninety-nine million, three hundred ninety-six thousand, three hundred twenty-two".