18453359504447 has 8 divisors (see below), whose sum is σ = 21298361182752. Its totient is φ = 15660559692000.

The previous prime is 18453359504431. The next prime is 18453359504473. The reversal of 18453359504447 is 74440595335481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18453359504447 - 2⁴ = 18453359504431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18453359504447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18453359504407) 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 7 ways as a sum of consecutive naturals, for example, 13050465704 + ... + 13050467117.

It is an arithmetic number, because the mean of its divisors is an integer number (2662295147844).

Almost surely, 2^{18453359504447} is an apocalyptic number.

18453359504447 is a deficient number, since it is larger than the sum of its proper divisors (2845001678305).

18453359504447 is a wasteful number, since it uses less digits than its factorization.

18453359504447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26100932929.

The product of its (nonzero) digits is 145152000, while the sum is 62.

The spelling of 18453359504447 in words is "eighteen trillion, four hundred fifty-three billion, three hundred fifty-nine million, five hundred four thousand, four hundred forty-seven".