18028537506824 has 64 divisors (see below), whose sum is σ = 38322665908800. Its totient is φ = 7882326722304.

The previous prime is 18028537506823. The next prime is 18028537506827. The reversal of 18028537506824 is 42860573582081.

It is not an unprimeable number, because it can be changed into a prime (18028537506823) 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 15 ways as a sum of consecutive naturals, for example, 26292059 + ... + 26969045.

It is an arithmetic number, because the mean of its divisors is an integer number (598791654825).

Almost surely, 2^{18028537506824} is an apocalyptic number.

It is an amenable number.

18028537506824 is an abundant number, since it is smaller than the sum of its proper divisors (20294128401976).

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

18028537506824 is a wasteful number, since it uses less digits than its factorization.

18028537506824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690502 (or 690498 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 59.

The spelling of 18028537506824 in words is "eighteen trillion, twenty-eight billion, five hundred thirty-seven million, five hundred six thousand, eight hundred twenty-four".