18025463835456 has 448 divisors, whose sum is σ = 61980729845760. Its totient is φ = 4485970944000.

The previous prime is 18025463835433. The next prime is 18025463835487. The reversal of 18025463835456 is 65453836452081.

It is a tau number, because it is divible by the number of its divisors (448).

It is a self number, because there is not a number n which added to its sum of digits gives 18025463835456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56003946 + ... + 56324886.

Almost surely, 2^{18025463835456} is an apocalyptic number.

18025463835456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18025463835456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30990364922880).

18025463835456 is an abundant number, since it is smaller than the sum of its proper divisors (43955266010304).

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

18025463835456 is a wasteful number, since it uses less digits than its factorization.

18025463835456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321134 (or 321124 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 60.

The spelling of 18025463835456 in words is "eighteen trillion, twenty-five billion, four hundred sixty-three million, eight hundred thirty-five thousand, four hundred fifty-six".