18485308619232 has 192 divisors, whose sum is σ = 59825286549504. Its totient is φ = 4866795601920.

The previous prime is 18485308619201. The next prime is 18485308619243. The reversal of 18485308619232 is 23291680358481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3207057 + ... + 6874287.

It is an arithmetic number, because the mean of its divisors is an integer number (311590034112).

Almost surely, 2^{18485308619232} is an apocalyptic number.

18485308619232 is a gapful number since it is divisible by the number (12) 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 18485308619232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29912643274752).

18485308619232 is an abundant number, since it is smaller than the sum of its proper divisors (41339977930272).

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

18485308619232 is a wasteful number, since it uses less digits than its factorization.

18485308619232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667841 (or 3667833 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 18485308619232 in words is "eighteen trillion, four hundred eighty-five billion, three hundred eight million, six hundred nineteen thousand, two hundred thirty-two".