18342323243280 has 60 divisors (see below), whose sum is σ = 61599635561100. Its totient is φ = 4891286198016.

The previous prime is 18342323243263. The next prime is 18342323243287. The reversal of 18342323243280 is 8234232324381.

18342323243280 is a `hidden beast` number, since 1 + 8 + 3 + 4 + 2 + 323 + 2 + 43 + 280 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5311291781376 + 13031031461904 = 2304624^2 + 3609852^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (18342323243287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12737723755 + ... + 12737725194.

It is an arithmetic number, because the mean of its divisors is an integer number (1026660592685).

Almost surely, 2^{18342323243280} is an apocalyptic number.

18342323243280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18342323243280 is an abundant number, since it is smaller than the sum of its proper divisors (43257312317820).

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

18342323243280 is a wasteful number, since it uses less digits than its factorization.

18342323243280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25475448968 (or 25475448959 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 18342323243280 in words is "eighteen trillion, three hundred forty-two billion, three hundred twenty-three million, two hundred forty-three thousand, two hundred eighty".