18290211761868 has 48 divisors (see below), whose sum is σ = 44054249293824. Its totient is φ = 5900013947520.

The previous prime is 18290211761821. The next prime is 18290211761879. The reversal of 18290211761868 is 86816711209281.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66915496 + ... + 67188272.

It is an arithmetic number, because the mean of its divisors is an integer number (917796860288).

Almost surely, 2^{18290211761868} is an apocalyptic number.

It is an amenable number.

18290211761868 is an abundant number, since it is smaller than the sum of its proper divisors (25764037531956).

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

18290211761868 is a wasteful number, since it uses less digits than its factorization.

18290211761868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453062 (or 453060 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 60.

The spelling of 18290211761868 in words is "eighteen trillion, two hundred ninety billion, two hundred eleven million, seven hundred sixty-one thousand, eight hundred sixty-eight".