18481347664037 has 8 divisors (see below), whose sum is σ = 18757504262016. Its totient is φ = 18205200348192.

The previous prime is 18481347664019. The next prime is 18481347664051. The reversal of 18481347664037 is 73046674318481.

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 18481347664037 - 2¹⁰ = 18481347663013 is a prime.

It is a super-2 number, since 2×18481347664037² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18481344664037) 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, 1744148 + ... + 6324930.

It is an arithmetic number, because the mean of its divisors is an integer number (2344688032752).

Almost surely, 2^{18481347664037} is an apocalyptic number.

It is an amenable number.

18481347664037 is a deficient number, since it is larger than the sum of its proper divisors (276156597979).

18481347664037 is an equidigital number, since it uses as much as digits as its factorization.

18481347664037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641067.

The product of its (nonzero) digits is 65028096, while the sum is 62.

The spelling of 18481347664037 in words is "eighteen trillion, four hundred eighty-one billion, three hundred forty-seven million, six hundred sixty-four thousand, thirty-seven".