2018278512 has 160 divisors (see below), whose sum is σ = 5978188800. Its totient is φ = 651589632.

The previous prime is 2018278501. The next prime is 2018278541. The reversal of 2018278512 is 2158728102.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2172064 + ... + 2172992.

It is an arithmetic number, because the mean of its divisors is an integer number (37363680).

Almost surely, 2^2018278512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018278512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2989094400).

2018278512 is an abundant number, since it is smaller than the sum of its proper divisors (3959910288).

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

2018278512 is a wasteful number, since it uses less digits than its factorization.

2018278512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 2018278512 is about 44925.2547238188. The cubic root of 2018278512 is about 1263.7476630023.

The spelling of 2018278512 in words is "two billion, eighteen million, two hundred seventy-eight thousand, five hundred twelve".