18989468358300 has 576 divisors, whose sum is σ = 67750543687680. Its totient is φ = 4524478560000.

The previous prime is 18989468358293. The next prime is 18989468358337. The reversal of 18989468358300 is 385386498981.

18989468358300 is a `hidden beast` number, since 1 + 8 + 9 + 89 + 468 + 3 + 5 + 83 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 403569775 + ... + 403616825.

It is an arithmetic number, because the mean of its divisors is an integer number (117622471680).

Almost surely, 2^{18989468358300} is an apocalyptic number.

18989468358300 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 18989468358300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33875271843840).

18989468358300 is an abundant number, since it is smaller than the sum of its proper divisors (48761075329380).

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

18989468358300 is a wasteful number, since it uses less digits than its factorization.

18989468358300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47319 (or 47306 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 72.

The spelling of 18989468358300 in words is "eighteen trillion, nine hundred eighty-nine billion, four hundred sixty-eight million, three hundred fifty-eight thousand, three hundred".