8115131577705 has 32 divisors (see below), whose sum is σ = 13189291948800. Its totient is φ = 4259915304960.

The previous prime is 8115131577691. The next prime is 8115131577727. The reversal of 8115131577705 is 5077751315118.

It is not a de Polignac number, because 8115131577705 - 2⁹ = 8115131577193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5793280 + ... + 7056369.

It is an arithmetic number, because the mean of its divisors is an integer number (412165373400).

Almost surely, 2^{8115131577705} is an apocalyptic number.

It is an amenable number.

8115131577705 is a deficient number, since it is larger than the sum of its proper divisors (5074160371095).

8115131577705 is a wasteful number, since it uses less digits than its factorization.

8115131577705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12850321.

The product of its (nonzero) digits is 1029000, while the sum is 51.

The spelling of 8115131577705 in words is "eight trillion, one hundred fifteen billion, one hundred thirty-one million, five hundred seventy-seven thousand, seven hundred five".