8021533480 has 32 divisors (see below), whose sum is σ = 18186236640. Its totient is φ = 3184118080.

The previous prime is 8021533469. The next prime is 8021533493. The reversal of 8021533480 is 843351208.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760174 + ... + 770653.

It is an arithmetic number, because the mean of its divisors is an integer number (568319895).

Almost surely, 2^8021533480 is an apocalyptic number.

It is an amenable number.

8021533480 is an abundant number, since it is smaller than the sum of its proper divisors (10164703160).

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

8021533480 is a wasteful number, since it uses less digits than its factorization.

8021533480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530969 (or 1530965 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 8021533480 is about 89563.0140180644. The cubic root of 8021533480 is about 2001.7928490326.

Adding to 8021533480 its reverse (843351208), we get a palindrome (8864884688).

The spelling of 8021533480 in words is "eight billion, twenty-one million, five hundred thirty-three thousand, four hundred eighty".