18045760000 has 100 divisors (see below), whose sum is σ = 45056719422. Its totient is φ = 7218176000.

The previous prime is 18045759997. The next prime is 18045760063. The reversal of 18045760000 is 6754081.

It can be written as a sum of positive squares in 5 ways, for example, as 21086464 + 18024673536 = 4592^2 + 134256^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 291804 + ... + 348196.

Almost surely, 2^18045760000 is an apocalyptic number.

18045760000 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 18045760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22528359711).

18045760000 is an abundant number, since it is smaller than the sum of its proper divisors (27010959422).

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

18045760000 is an frugal number, since it uses more digits than its factorization.

18045760000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56431 (or 56400 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 18045760000 in words is "eighteen billion, forty-five million, seven hundred sixty thousand".