18202203822 has 32 divisors (see below), whose sum is σ = 39933339264. Its totient is φ = 5485341600.

The previous prime is 18202203791. The next prime is 18202203847. The reversal of 18202203822 is 22830220281.

It is a self number, because there is not a number n which added to its sum of digits gives 18202203822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749908 + ... + 773799.

It is an arithmetic number, because the mean of its divisors is an integer number (1247916852).

Almost surely, 2^18202203822 is an apocalyptic number.

18202203822 is an abundant number, since it is smaller than the sum of its proper divisors (21731135442).

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

18202203822 is a wasteful number, since it uses less digits than its factorization.

18202203822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523904.

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 18202203822 in words is "eighteen billion, two hundred two million, two hundred three thousand, eight hundred twenty-two".