18450880487424 has 1008 divisors, whose sum is σ = 68322228573456. Its totient is φ = 4743954432000.

The previous prime is 18450880487387. The next prime is 18450880487441. The reversal of 18450880487424 is 42478408805481.

18450880487424 is a `hidden beast` number, since 1 + 8 + 4 + 50 + 8 + 80 + 4 + 87 + 424 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a super-2 number, since 2×18450880487424² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4013676294 + ... + 4013680890.

Almost surely, 2^{18450880487424} is an apocalyptic number.

18450880487424 is a gapful number since it is divisible by the number (14) 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 18450880487424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34161114286728).

18450880487424 is an abundant number, since it is smaller than the sum of its proper divisors (49871348086032).

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

18450880487424 is a wasteful number, since it uses less digits than its factorization.

18450880487424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4721 counting only the distinct ones).

The product of its (nonzero) digits is 73400320, while the sum is 63.

The spelling of 18450880487424 in words is "eighteen trillion, four hundred fifty billion, eight hundred eighty million, four hundred eighty-seven thousand, four hundred twenty-four".