18481464500 has 48 divisors (see below), whose sum is σ = 41302252992. Its totient is φ = 7220656800.

The previous prime is 18481464487. The next prime is 18481464509. The reversal of 18481464500 is 546418481.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18481464509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408302 + ... + 451301.

It is an arithmetic number, because the mean of its divisors is an integer number (860463604).

Almost surely, 2^18481464500 is an apocalyptic number.

18481464500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18481464500 is an abundant number, since it is smaller than the sum of its proper divisors (22820788492).

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

18481464500 is a wasteful number, since it uses less digits than its factorization.

18481464500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859665 (or 859653 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 18481464500 in words is "eighteen billion, four hundred eighty-one million, four hundred sixty-four thousand, five hundred".