18673347352576 has 96 divisors (see below), whose sum is σ = 42720201407520. Its totient is φ = 7993732497408.

The previous prime is 18673347352547. The next prime is 18673347352601. The reversal of 18673347352576 is 67525374337681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11830056 + ... + 13315288.

It is an arithmetic number, because the mean of its divisors is an integer number (445002097995).

Almost surely, 2^{18673347352576} is an apocalyptic number.

18673347352576 is a gapful number since it is divisible by the number (16) 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 18673347352576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21360100703760).

18673347352576 is an abundant number, since it is smaller than the sum of its proper divisors (24046854054944).

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

18673347352576 is an equidigital number, since it uses as much as digits as its factorization.

18673347352576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486139 (or 1486119 counting only the distinct ones).

The product of its digits is 533433600, while the sum is 67.

The spelling of 18673347352576 in words is "eighteen trillion, six hundred seventy-three billion, three hundred forty-seven million, three hundred fifty-two thousand, five hundred seventy-six".