18501833349996 has 48 divisors (see below), whose sum is σ = 43198177478400. Its totient is φ = 6163387940160.

The previous prime is 18501833349971. The next prime is 18501833350031. The reversal of 18501833349996 is 69994333810581.

It is a super-2 number, since 2×18501833349996² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18501833349996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328607055 + ... + 328663353.

It is an arithmetic number, because the mean of its divisors is an integer number (899962030800).

Almost surely, 2^{18501833349996} is an apocalyptic number.

It is an amenable number.

18501833349996 is an abundant number, since it is smaller than the sum of its proper divisors (24696344128404).

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

18501833349996 is a wasteful number, since it uses less digits than its factorization.

18501833349996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73094 (or 73092 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 69.

The spelling of 18501833349996 in words is "eighteen trillion, five hundred one billion, eight hundred thirty-three million, three hundred forty-nine thousand, nine hundred ninety-six".