18724608000 has 1152 divisors, whose sum is σ = 81850728960. Its totient is φ = 4180377600.

The previous prime is 18724607999. The next prime is 18724608011. The reversal of 18724608000 is 80642781.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-2 number, since 2×18724608000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 435455979 + ... + 435456021.

It is an arithmetic number, because the mean of its divisors is an integer number (71050980).

Almost surely, 2^18724608000 is an apocalyptic number.

18724608000 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 18724608000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40925364480).

18724608000 is an abundant number, since it is smaller than the sum of its proper divisors (63126120960).

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

18724608000 is an frugal number, since it uses more digits than its factorization.

18724608000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 18724608000 in words is "eighteen billion, seven hundred twenty-four million, six hundred eight thousand".