18888918048 has 288 divisors, whose sum is σ = 72122424192. Its totient is φ = 4528742400.

The previous prime is 18888918019. The next prime is 18888918067. The reversal of 18888918048 is 84081988881.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (63).

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 47 ways as a sum of consecutive naturals, for example, 255528 + ... + 321048.

It is an arithmetic number, because the mean of its divisors is an integer number (250425084).

Almost surely, 2^18888918048 is an apocalyptic number.

18888918048 is a gapful number since it is divisible by the number (18) 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 18888918048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36061212096).

18888918048 is an abundant number, since it is smaller than the sum of its proper divisors (53233506144).

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

18888918048 is a wasteful number, since it uses less digits than its factorization.

18888918048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65568 (or 65557 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 63.

The spelling of 18888918048 in words is "eighteen billion, eight hundred eighty-eight million, nine hundred eighteen thousand, forty-eight".