18597718374144 has 288 divisors, whose sum is σ = 60938564090880. Its totient is φ = 4903353778176.

The previous prime is 18597718374133. The next prime is 18597718374163. The reversal of 18597718374144 is 44147381779581.

It is a super-3 number, since 3×18597718374144³ (a number of 41 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231918184 + ... + 231998360.

Almost surely, 2^{18597718374144} is an apocalyptic number.

18597718374144 is a gapful number since it is divisible by the number (14) 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 18597718374144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30469282045440).

18597718374144 is an abundant number, since it is smaller than the sum of its proper divisors (42340845716736).

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

18597718374144 is a wasteful number, since it uses less digits than its factorization.

18597718374144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83535 (or 83521 counting only the distinct ones).

The product of its digits is 189665280, while the sum is 69.

The spelling of 18597718374144 in words is "eighteen trillion, five hundred ninety-seven billion, seven hundred eighteen million, three hundred seventy-four thousand, one hundred forty-four".