18192011001820 has 48 divisors (see below), whose sum is σ = 38411267908608. Its totient is φ = 7237225316160.

The previous prime is 18192011001809. The next prime is 18192011001869. The reversal of 18192011001820 is 2810011029181.

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, 4490337 + ... + 7519783.

It is an arithmetic number, because the mean of its divisors is an integer number (800234748096).

Almost surely, 2^{18192011001820} is an apocalyptic number.

18192011001820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18192011001820 is an abundant number, since it is smaller than the sum of its proper divisors (20219256906788).

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

18192011001820 is a wasteful number, since it uses less digits than its factorization.

18192011001820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031090 (or 3031088 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 34.

The spelling of 18192011001820 in words is "eighteen trillion, one hundred ninety-two billion, eleven million, one thousand, eight hundred twenty".