18549696907104 has 576 divisors, whose sum is σ = 58339161538560. Its totient is φ = 5137292160000.

The previous prime is 18549696907099. The next prime is 18549696907109. The reversal of 18549696907104 is 40170969694581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18549696907099) and next prime (18549696907109).

It is a super-3 number, since 3×18549696907104³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18549696907109) 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 95 ways as a sum of consecutive naturals, for example, 2264639649 + ... + 2264647839.

It is an arithmetic number, because the mean of its divisors is an integer number (101283266560).

Almost surely, 2^{18549696907104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18549696907104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29169580769280).

18549696907104 is an abundant number, since it is smaller than the sum of its proper divisors (39789464631456).

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

18549696907104 is a wasteful number, since it uses less digits than its factorization.

18549696907104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607 (or 8588 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 18549696907104 in words is "eighteen trillion, five hundred forty-nine billion, six hundred ninety-six million, nine hundred seven thousand, one hundred four".