1818403820022 has 32 divisors (see below), whose sum is σ = 3647214946944. Its totient is φ = 604402344000.

The previous prime is 1818403819987. The next prime is 1818403820113. The reversal of 1818403820022 is 2200283048181.

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, 2901522 + ... + 3472122.

It is an arithmetic number, because the mean of its divisors is an integer number (113975467092).

Almost surely, 2^{1818403820022} is an apocalyptic number.

1818403820022 is an abundant number, since it is smaller than the sum of its proper divisors (1828811126922).

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

1818403820022 is a wasteful number, since it uses less digits than its factorization.

1818403820022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572124.

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 1818403820022 in words is "one trillion, eight hundred eighteen billion, four hundred three million, eight hundred twenty thousand, twenty-two".