18873743604 has 96 divisors (see below), whose sum is σ = 48705463296. Its totient is φ = 5658048000.

The previous prime is 18873743593. The next prime is 18873743639. The reversal of 18873743604 is 40634737881.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8383479 + ... + 8385729.

It is an arithmetic number, because the mean of its divisors is an integer number (507348576).

Almost surely, 2^18873743604 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 18873743604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24352731648).

18873743604 is an abundant number, since it is smaller than the sum of its proper divisors (29831719692).

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

18873743604 is a wasteful number, since it uses less digits than its factorization.

18873743604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 18873743604 in words is "eighteen billion, eight hundred seventy-three million, seven hundred forty-three thousand, six hundred four".