8113109115904 has 297 divisors, whose sum is σ = 18109040582811. Its totient is φ = 3631306997760.

The previous prime is 8113109115901. The next prime is 8113109116003. The reversal of 8113109115904 is 4095119013118.

The square root of 8113109115904 is 2848352.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5403951129600 + 2709157986304 = 2324640^2 + 1645952^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8113109115901) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48581491629 + ... + 48581491795.

Almost surely, 2^{8113109115904} is an apocalyptic number.

8113109115904 is the 2848352-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8113109115904

8113109115904 is an abundant number, since it is smaller than the sum of its proper divisors (9995931466907).

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

8113109115904 is an equidigital number, since it uses as much as digits as its factorization.

8113109115904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 43.

The spelling of 8113109115904 in words is "eight trillion, one hundred thirteen billion, one hundred nine million, one hundred fifteen thousand, nine hundred four".