18493483008 has 768 divisors, whose sum is σ = 69038161920. Its totient is φ = 4246732800.

The previous prime is 18493483007. The next prime is 18493483049. The reversal of 18493483008 is 80038439481.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (18493483003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190654416 + ... + 190654512.

It is an arithmetic number, because the mean of its divisors is an integer number (89893440).

Almost surely, 2^18493483008 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 18493483008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34519080960).

18493483008 is an abundant number, since it is smaller than the sum of its proper divisors (50544678912).

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

18493483008 is a wasteful number, since it uses less digits than its factorization.

18493483008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

It can be divided in two parts, 18493 and 483008, that added together give a triangular number (501501 = T₁₀₀₁).

The spelling of 18493483008 in words is "eighteen billion, four hundred ninety-three million, four hundred eighty-three thousand, eight".