18224458033840 has 40 divisors (see below), whose sum is σ = 42746837205888. Its totient is φ = 7225271854080.

The previous prime is 18224458033829. The next prime is 18224458033883. The reversal of 18224458033840 is 4833085442281.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007980896 + ... + 1007998975.

Almost surely, 2^{18224458033840} is an apocalyptic number.

18224458033840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18224458033840 is an abundant number, since it is smaller than the sum of its proper divisors (24522379172048).

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

18224458033840 is a wasteful number, since it uses less digits than its factorization.

18224458033840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015979997 (or 2015979991 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 52.

The spelling of 18224458033840 in words is "eighteen trillion, two hundred twenty-four billion, four hundred fifty-eight million, thirty-three thousand, eight hundred forty".