18520601473248 has 768 divisors, whose sum is σ = 61874030131200. Its totient is φ = 4731227504640.

The previous prime is 18520601473183. The next prime is 18520601473259. The reversal of 18520601473248 is 84237410602581.

It is a self number, because there is not a number n which added to its sum of digits gives 18520601473248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5749952278 + ... + 5749955498.

It is an arithmetic number, because the mean of its divisors is an integer number (80565143400).

Almost surely, 2^{18520601473248} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18520601473248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30937015065600).

18520601473248 is an abundant number, since it is smaller than the sum of its proper divisors (43353428657952).

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

18520601473248 is a wasteful number, since it uses less digits than its factorization.

18520601473248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 18520601473248 in words is "eighteen trillion, five hundred twenty billion, six hundred one million, four hundred seventy-three thousand, two hundred forty-eight".