18804520612803 has 8 divisors (see below), whose sum is σ = 25081402982400. Its totient is φ = 12531992659208.

The previous prime is 18804520612739. The next prime is 18804520612817. The reversal of 18804520612803 is 30821602540881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18804520612803 - 2⁶ = 18804520612739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18804520612873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088593923 + ... + 1088611196.

It is an arithmetic number, because the mean of its divisors is an integer number (3135175372800).

Almost surely, 2^{18804520612803} is an apocalyptic number.

18804520612803 is a deficient number, since it is larger than the sum of its proper divisors (6276882369597).

18804520612803 is a wasteful number, since it uses less digits than its factorization.

18804520612803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177208001.

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 18804520612803 in words is "eighteen trillion, eight hundred four billion, five hundred twenty million, six hundred twelve thousand, eight hundred three".