8505994137 has 8 divisors (see below), whose sum is σ = 11416434240. Its totient is φ = 5633108400.

The previous prime is 8505994127. The next prime is 8505994139. The reversal of 8505994137 is 7314995058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8505994137 - 2¹⁰ = 8505993113 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 8505994137.

It is not an unprimeable number, because it can be changed into a prime (8505994139) 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 7 ways as a sum of consecutive naturals, for example, 9388062 + ... + 9388967.

It is an arithmetic number, because the mean of its divisors is an integer number (1427054280).

Almost surely, 2^8505994137 is an apocalyptic number.

It is an amenable number.

8505994137 is a deficient number, since it is larger than the sum of its proper divisors (2910440103).

8505994137 is a wasteful number, since it uses less digits than its factorization.

8505994137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18777183.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The square root of 8505994137 is about 92227.9466159797. The cubic root of 8505994137 is about 2041.3071637241.

The spelling of 8505994137 in words is "eight billion, five hundred five million, nine hundred ninety-four thousand, one hundred thirty-seven".