18084286481550 has 192 divisors, whose sum is σ = 46395750481920. Its totient is φ = 4656847536000.

The previous prime is 18084286481549. The next prime is 18084286481557. The reversal of 18084286481550 is 5518468248081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18084286481557) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5383828771 + ... + 5383832129.

It is an arithmetic number, because the mean of its divisors is an integer number (241644533760).

Almost surely, 2^{18084286481550} is an apocalyptic number.

18084286481550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18084286481550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23197875240960).

18084286481550 is an abundant number, since it is smaller than the sum of its proper divisors (28311464000370).

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

18084286481550 is a wasteful number, since it uses less digits than its factorization.

18084286481550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559 (or 5554 counting only the distinct ones).

The product of its (nonzero) digits is 19660800, while the sum is 60.

The spelling of 18084286481550 in words is "eighteen trillion, eighty-four billion, two hundred eighty-six million, four hundred eighty-one thousand, five hundred fifty".