8136670905 has 48 divisors (see below), whose sum is σ = 15882048000. Its totient is φ = 3817785600.

The previous prime is 8136670901. The next prime is 8136670933. The reversal of 8136670905 is 5090766318.

It is a happy number.

It is not a de Polignac number, because 8136670905 - 2² = 8136670901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8136670901) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 249780 + ... + 280469.

It is an arithmetic number, because the mean of its divisors is an integer number (330876000).

Almost surely, 2^8136670905 is an apocalyptic number.

It is an amenable number.

8136670905 is a deficient number, since it is larger than the sum of its proper divisors (7745377095).

8136670905 is a wasteful number, since it uses less digits than its factorization.

8136670905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530302 (or 530299 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 8136670905 is about 90203.4971883020. The cubic root of 8136670905 is about 2011.3249933056.

The spelling of 8136670905 in words is "eight billion, one hundred thirty-six million, six hundred seventy thousand, nine hundred five".