8168504500 has 48 divisors (see below), whose sum is σ = 19212337872. Its totient is φ = 3016060800.

The previous prime is 8168504483. The next prime is 8168504521. The reversal of 8168504500 is 54058618.

It can be written as a sum of positive squares in 8 ways, for example, as 6347946276 + 1820558224 = 79674^2 + 42668^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8168504500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621847 + ... + 634846.

It is an arithmetic number, because the mean of its divisors is an integer number (400257039).

Almost surely, 2^8168504500 is an apocalyptic number.

It is an amenable number.

8168504500 is an abundant number, since it is smaller than the sum of its proper divisors (11043833372).

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

8168504500 is a wasteful number, since it uses less digits than its factorization.

8168504500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256725 (or 1256713 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 8168504500 is about 90379.7792650546. The cubic root of 8168504500 is about 2013.9445899105.

The spelling of 8168504500 in words is "eight billion, one hundred sixty-eight million, five hundred four thousand, five hundred".