8137375605 has 12 divisors (see below), whose sum is σ = 14104784460. Its totient is φ = 4339933632.

The previous prime is 8137375583. The next prime is 8137375607. The reversal of 8137375605 is 5065737318.

8137375605 is a `hidden beast` number, since 8 + 1 + 3 + 7 + 37 + 5 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2173983876 + 5963391729 = 46626^2 + 77223^2 .

It is not a de Polignac number, because 8137375605 - 2¹¹ = 8137373557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 180830569 = 8137375605 / (8 + 1 + 3 + 7 + 3 + 7 + 5 + 6 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8137375607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90415240 + ... + 90415329.

It is an arithmetic number, because the mean of its divisors is an integer number (1175398705).

Almost surely, 2^8137375605 is an apocalyptic number.

It is an amenable number.

8137375605 is a deficient number, since it is larger than the sum of its proper divisors (5967408855).

8137375605 is a wasteful number, since it uses less digits than its factorization.

8137375605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180830580 (or 180830577 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 8137375605 is about 90207.4032715719. The cubic root of 8137375605 is about 2011.3830571757.

The spelling of 8137375605 in words is "eight billion, one hundred thirty-seven million, three hundred seventy-five thousand, six hundred five".