8607520138 has 64 divisors (see below), whose sum is σ = 16533393408. Its totient is φ = 3274064640.

The previous prime is 8607520127. The next prime is 8607520139. The reversal of 8607520138 is 8310257068.

It is a self number, because there is not a number n which added to its sum of digits gives 8607520138.

It is not an unprimeable number, because it can be changed into a prime (8607520139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377581 + ... + 399727.

It is an arithmetic number, because the mean of its divisors is an integer number (258334272).

Almost surely, 2^8607520138 is an apocalyptic number.

8607520138 is a deficient number, since it is larger than the sum of its proper divisors (7925873270).

8607520138 is a wasteful number, since it uses less digits than its factorization.

8607520138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22267.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 8607520138 is about 92776.7219619232. The cubic root of 8607520138 is about 2049.3966209964.

The spelling of 8607520138 in words is "eight billion, six hundred seven million, five hundred twenty thousand, one hundred thirty-eight".