18773285760 has 192 divisors, whose sum is σ = 67228040880. Its totient is φ = 5006168064.

The previous prime is 18773285747. The next prime is 18773285777. The reversal of 18773285760 is 6758237781.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a junction number, because it is equal to n+sod(n) for n = 18773285697 and 18773285706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95164 + ... + 215876.

Almost surely, 2^18773285760 is an apocalyptic number.

18773285760 is a gapful number since it is divisible by the number (10) 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 18773285760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33614020440).

18773285760 is an abundant number, since it is smaller than the sum of its proper divisors (48454755120).

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

18773285760 is an equidigital number, since it uses as much as digits as its factorization.

18773285760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120747 (or 120723 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 18773285760 in words is "eighteen billion, seven hundred seventy-three million, two hundred eighty-five thousand, seven hundred sixty".