18387459196020 has 384 divisors, whose sum is σ = 59706059212800. Its totient is φ = 4694028724224.

The previous prime is 18387459195943. The next prime is 18387459196027. The reversal of 18387459196020 is 2069195478381.

18387459196020 is a `hidden beast` number, since 1 + 8 + 3 + 8 + 7 + 4 + 5 + 9 + 19 + 602 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18387459196027) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 461663347 + ... + 461703173.

It is an arithmetic number, because the mean of its divisors is an integer number (155484529200).

It is a 1-persistent number, because it is pandigital, but 2⋅18387459196020 = 36774918392040 is not.

Almost surely, 2^{18387459196020} is an apocalyptic number.

18387459196020 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 18387459196020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29853029606400).

18387459196020 is an abundant number, since it is smaller than the sum of its proper divisors (41318600016780).

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

18387459196020 is a wasteful number, since it uses less digits than its factorization.

18387459196020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40284 (or 40276 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 18387459196020 in words is "eighteen trillion, three hundred eighty-seven billion, four hundred fifty-nine million, one hundred ninety-six thousand, twenty".