8145533888 has 56 divisors (see below), whose sum is σ = 16511534160. Its totient is φ = 3986012160.

The previous prime is 8145533887. The next prime is 8145533897. The reversal of 8145533888 is 8883355418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145533887) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 605378 + ... + 618686.

Almost surely, 2^8145533888 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 8145533888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8255767080).

8145533888 is an abundant number, since it is smaller than the sum of its proper divisors (8366000272).

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

8145533888 is a wasteful number, since it uses less digits than its factorization.

8145533888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525 (or 13515 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 53.

The square root of 8145533888 is about 90252.6115300826. The cubic root of 8145533888 is about 2012.0550163013.

The spelling of 8145533888 in words is "eight billion, one hundred forty-five million, five hundred thirty-three thousand, eight hundred eighty-eight".