18678924480 has 112 divisors (see below), whose sum is σ = 59537132640. Its totient is φ = 4961599488.

The previous prime is 18678924463. The next prime is 18678924487. The reversal of 18678924480 is 8442987681.

It is a self number, because there is not a number n which added to its sum of digits gives 18678924480.

It is not an unprimeable number, because it can be changed into a prime (18678924487) 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, 208866 + ... + 284574.

Almost surely, 2^18678924480 is an apocalyptic number.

18678924480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18678924480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29768566320).

18678924480 is an abundant number, since it is smaller than the sum of its proper divisors (40858208160).

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

18678924480 is a wasteful number, since it uses less digits than its factorization.

18678924480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75986 (or 75976 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 18678924480 in words is "eighteen billion, six hundred seventy-eight million, nine hundred twenty-four thousand, four hundred eighty".