8340959172985 has 16 divisors (see below), whose sum is σ = 10226719512000. Its totient is φ = 6529058496576.

The previous prime is 8340959172967. The next prime is 8340959172989. The reversal of 8340959172985 is 5892719590438.

It is a cyclic number.

It is not a de Polignac number, because 8340959172985 - 2¹¹ = 8340959170937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8340959172989) 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 15 ways as a sum of consecutive naturals, for example, 83501715 + ... + 83601544.

It is an arithmetic number, because the mean of its divisors is an integer number (639169969500).

Almost surely, 2^{8340959172985} is an apocalyptic number.

It is an amenable number.

8340959172985 is a deficient number, since it is larger than the sum of its proper divisors (1885760339015).

8340959172985 is a wasteful number, since it uses less digits than its factorization.

8340959172985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167103480.

The product of its (nonzero) digits is 195955200, while the sum is 70.

The spelling of 8340959172985 in words is "eight trillion, three hundred forty billion, nine hundred fifty-nine million, one hundred seventy-two thousand, nine hundred eighty-five".