18623042504448 has 72 divisors (see below), whose sum is σ = 49566291819408. Its totient is φ = 6207450365952.

The previous prime is 18623042504431. The next prime is 18623042504453. The reversal of 18623042504448 is 84440524032681.

It is a self number, because there is not a number n which added to its sum of digits gives 18623042504448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20908786 + ... + 21781262.

It is an arithmetic number, because the mean of its divisors is an integer number (688420719714).

Almost surely, 2^{18623042504448} is an apocalyptic number.

It is an amenable number.

18623042504448 is an abundant number, since it is smaller than the sum of its proper divisors (30943249314960).

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

18623042504448 is an equidigital number, since it uses as much as digits as its factorization.

18623042504448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900289 (or 900275 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 51.

The spelling of 18623042504448 in words is "eighteen trillion, six hundred twenty-three billion, forty-two million, five hundred four thousand, four hundred forty-eight".