8219455484 has 24 divisors (see below), whose sum is σ = 14765277408. Its totient is φ = 4001218560.

The previous prime is 8219455481. The next prime is 8219455501. The reversal of 8219455484 is 4845549128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8219455481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28412 + ... + 131324.

It is an arithmetic number, because the mean of its divisors is an integer number (615219892).

Almost surely, 2^8219455484 is an apocalyptic number.

It is an amenable number.

8219455484 is a deficient number, since it is larger than the sum of its proper divisors (6545821924).

8219455484 is a wasteful number, since it uses less digits than its factorization.

8219455484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103445 (or 103443 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 50.

The square root of 8219455484 is about 90661.2126766458. The cubic root of 8219455484 is about 2018.1232351238.

The spelling of 8219455484 in words is "eight billion, two hundred nineteen million, four hundred fifty-five thousand, four hundred eighty-four".