18345000469956 has 48 divisors (see below), whose sum is σ = 45102114220800. Its totient is φ = 5787472829472.

The previous prime is 18345000469867. The next prime is 18345000469993. The reversal of 18345000469956 is 65996400054381.

It is a self number, because there is not a number n which added to its sum of digits gives 18345000469956.

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, 39247810 + ... + 39712473.

It is an arithmetic number, because the mean of its divisors is an integer number (939627379600).

Almost surely, 2^{18345000469956} is an apocalyptic number.

It is an amenable number.

18345000469956 is an abundant number, since it is smaller than the sum of its proper divisors (26757113750844).

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

18345000469956 is a wasteful number, since it uses less digits than its factorization.

18345000469956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78961328 (or 78961326 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 18345000469956 in words is "eighteen trillion, three hundred forty-five billion, four hundred sixty-nine thousand, nine hundred fifty-six".