18808629045248 has 144 divisors (see below), whose sum is σ = 44067529839060. Its totient is φ = 8001996914688.

The previous prime is 18808629045187. The next prime is 18808629045307. The reversal of 18808629045248 is 84254092680881.

It can be written as a sum of positive squares in 2 ways, for example, as 18012622480384 + 796006564864 = 4244128^2 + 892192^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13064186 + ... + 14432262.

Almost surely, 2^{18808629045248} 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 18808629045248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22033764919530).

18808629045248 is an abundant number, since it is smaller than the sum of its proper divisors (25258900793812).

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

18808629045248 is a wasteful number, since it uses less digits than its factorization.

18808629045248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368250 (or 1368223 counting only the distinct ones).

The product of its (nonzero) digits is 70778880, while the sum is 65.

The spelling of 18808629045248 in words is "eighteen trillion, eight hundred eight billion, six hundred twenty-nine million, forty-five thousand, two hundred forty-eight".