201854545822 has 16 divisors (see below), whose sum is σ = 312609913344. Its totient is φ = 97652511000.

The previous prime is 201854545819. The next prime is 201854545847. The reversal of 201854545822 is 228545458102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5797 + ... + 635407.

It is an arithmetic number, because the mean of its divisors is an integer number (19538119584).

Almost surely, 2^201854545822 is an apocalyptic number.

201854545822 is a deficient number, since it is larger than the sum of its proper divisors (110755367522).

201854545822 is a wasteful number, since it uses less digits than its factorization.

201854545822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634815.

The product of its (nonzero) digits is 1024000, while the sum is 46.

The spelling of 201854545822 in words is "two hundred one billion, eight hundred fifty-four million, five hundred forty-five thousand, eight hundred twenty-two".