2018091888 has 80 divisors (see below), whose sum is σ = 5949276960. Its totient is φ = 654511104.

The previous prime is 2018091877. The next prime is 2018091919. The reversal of 2018091888 is 8881908102.

It is a super-2 number, since 2×2018091888² = 8145389736822809088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47145 + ... + 79112.

It is an arithmetic number, because the mean of its divisors is an integer number (74365962).

Almost surely, 2^2018091888 is an apocalyptic number.

It is an amenable number.

2018091888 is an abundant number, since it is smaller than the sum of its proper divisors (3931185072).

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

2018091888 is a wasteful number, since it uses less digits than its factorization.

2018091888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126311 (or 126299 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The square root of 2018091888 is about 44923.1776258092. The cubic root of 2018091888 is about 1263.7087101832.

The spelling of 2018091888 in words is "two billion, eighteen million, ninety-one thousand, eight hundred eighty-eight".