18484868040 has 64 divisors (see below), whose sum is σ = 56807170560. Its totient is φ = 4809070080.

The previous prime is 18484868021. The next prime is 18484868063. The reversal of 18484868040 is 4086848481.

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, 1873624 + ... + 1883463.

It is an arithmetic number, because the mean of its divisors is an integer number (887612040).

Almost surely, 2^18484868040 is an apocalyptic number.

18484868040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18484868040 is an abundant number, since it is smaller than the sum of its proper divisors (38322302520).

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

18484868040 is a wasteful number, since it uses less digits than its factorization.

18484868040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757142 (or 3757138 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 51.

The spelling of 18484868040 in words is "eighteen billion, four hundred eighty-four million, eight hundred sixty-eight thousand, forty".