18028584880 has 40 divisors (see below), whose sum is σ = 41973318000. Its totient is φ = 7201651968.

The previous prime is 18028584859. The next prime is 18028584883. The reversal of 18028584880 is 8848582081.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×18028584880² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18028584883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93355 + ... + 211594.

It is an arithmetic number, because the mean of its divisors is an integer number (1049332950).

Almost surely, 2^18028584880 is an apocalyptic number.

18028584880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18028584880 is an abundant number, since it is smaller than the sum of its proper divisors (23944733120).

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

18028584880 is a wasteful number, since it uses less digits than its factorization.

18028584880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305701 (or 305695 counting only the distinct ones).

The product of its (nonzero) digits is 1310720, while the sum is 52.

The spelling of 18028584880 in words is "eighteen billion, twenty-eight million, five hundred eighty-four thousand, eight hundred eighty".