2018986500 has 96 divisors (see below), whose sum is σ = 5891872896. Its totient is φ = 537244800.

The previous prime is 2018986499. The next prime is 2018986523. The reversal of 2018986500 is 56898102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 879354 + ... + 881646.

It is an arithmetic number, because the mean of its divisors is an integer number (61373676).

Almost surely, 2^2018986500 is an apocalyptic number.

2018986500 is a gapful number since it is divisible by the number (20) 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 2018986500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2945936448).

2018986500 is an abundant number, since it is smaller than the sum of its proper divisors (3872886396).

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

2018986500 is a wasteful number, since it uses less digits than its factorization.

2018986500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 2018986500 is about 44933.1336543536. The cubic root of 2018986500 is about 1263.8954149233.

The spelling of 2018986500 in words is "two billion, eighteen million, nine hundred eighty-six thousand, five hundred".