185000387000 has 256 divisors, whose sum is σ = 513658454400. Its totient is φ = 61478400000.

The previous prime is 185000386993. The next prime is 185000387017. The reversal of 185000387000 is 783000581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14436596 + ... + 14449404.

Almost surely, 2^185000387000 is an apocalyptic number.

185000387000 is a gapful number since it is divisible by the number (10) 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 185000387000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256829227200).

185000387000 is an abundant number, since it is smaller than the sum of its proper divisors (328658067400).

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

185000387000 is a wasteful number, since it uses less digits than its factorization.

185000387000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12955 (or 12941 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

Adding to 185000387000 its reverse (783000581), we get a palindrome (185783387581).

The spelling of 185000387000 in words is "one hundred eighty-five billion, three hundred eighty-seven thousand".