18087804486 has 96 divisors (see below), whose sum is σ = 41268344832. Its totient is φ = 5714660160.

The previous prime is 18087804481. The next prime is 18087804487. The reversal of 18087804486 is 68440878081.

18087804486 is a `hidden beast` number, since 1 + 8 + 0 + 87 + 80 + 4 + 486 = 666.

It is a super-2 number, since 2×18087804486² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18087804481) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 29506716 + ... + 29507328.

It is an arithmetic number, because the mean of its divisors is an integer number (429878592).

Almost surely, 2^18087804486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18087804486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20634172416).

18087804486 is an abundant number, since it is smaller than the sum of its proper divisors (23180540346).

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

18087804486 is a wasteful number, since it uses less digits than its factorization.

18087804486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 54.

The spelling of 18087804486 in words is "eighteen billion, eighty-seven million, eight hundred four thousand, four hundred eighty-six".