18604115143794 has 160 divisors (see below), whose sum is σ = 43961544861696. Its totient is φ = 5871737226240.

The previous prime is 18604115143759. The next prime is 18604115143799. The reversal of 18604115143794 is 49734151140681.

18604115143794 is a `hidden beast` number, since 1 + 8 + 6 + 0 + 4 + 1 + 1 + 514 + 37 + 94 = 666.

It is a super-2 number, since 2×18604115143794² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18604115143794.

It is not an unprimeable number, because it can be changed into a prime (18604115143799) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 848059194 + ... + 848081130.

Almost surely, 2^{18604115143794} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18604115143794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21980772430848).

18604115143794 is an abundant number, since it is smaller than the sum of its proper divisors (25357429717902).

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

18604115143794 is a wasteful number, since it uses less digits than its factorization.

18604115143794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25622 (or 25613 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 18604115143794 in words is "eighteen trillion, six hundred four billion, one hundred fifteen million, one hundred forty-three thousand, seven hundred ninety-four".