8403518816 has 144 divisors (see below), whose sum is σ = 22101024960. Its totient is φ = 3101656320.

The previous prime is 8403518789. The next prime is 8403518833. The reversal of 8403518816 is 6188153048.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314891 + ... + 340533.

It is an arithmetic number, because the mean of its divisors is an integer number (153479340).

Almost surely, 2^8403518816 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 8403518816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11050512480).

8403518816 is an abundant number, since it is smaller than the sum of its proper divisors (13697506144).

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

8403518816 is a wasteful number, since it uses less digits than its factorization.

8403518816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25697 (or 25682 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 8403518816 is about 91670.7086042210. The cubic root of 8403518816 is about 2033.0765241433.

The spelling of 8403518816 in words is "eight billion, four hundred three million, five hundred eighteen thousand, eight hundred sixteen".