8263344520 has 32 divisors (see below), whose sum is σ = 18658716120. Its totient is φ = 3293570560.

The previous prime is 8263344503. The next prime is 8263344539. The reversal of 8263344520 is 254433628.

It can be written as a sum of positive squares in 4 ways, for example, as 7607677284 + 655667236 = 87222^2 + 25606^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8263344520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356347 + ... + 378826.

Almost surely, 2^8263344520 is an apocalyptic number.

It is an amenable number.

8263344520 is an abundant number, since it is smaller than the sum of its proper divisors (10395371600).

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

8263344520 is a wasteful number, since it uses less digits than its factorization.

8263344520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735465 (or 735461 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 8263344520 is about 90902.9401064674. The cubic root of 8263344520 is about 2021.7088862235.

The spelling of 8263344520 in words is "eight billion, two hundred sixty-three million, three hundred forty-four thousand, five hundred twenty".