8137563607505 has 16 divisors (see below), whose sum is σ = 10122254899200. Its totient is φ = 6273689177280.

The previous prime is 8137563607501. The next prime is 8137563607633. The reversal of 8137563607505 is 5057063657318.

It is not a de Polignac number, because 8137563607505 - 2² = 8137563607501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8137563607501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109796450 + ... + 109870539.

It is an arithmetic number, because the mean of its divisors is an integer number (632640931200).

Almost surely, 2^{8137563607505} is an apocalyptic number.

It is an amenable number.

8137563607505 is a deficient number, since it is larger than the sum of its proper divisors (1984691291695).

8137563607505 is a wasteful number, since it uses less digits than its factorization.

8137563607505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219667264.

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 8137563607505 in words is "eight trillion, one hundred thirty-seven billion, five hundred sixty-three million, six hundred seven thousand, five hundred five".