8634529985 has 8 divisors (see below), whose sum is σ = 10362005376. Its totient is φ = 6907244400.

The previous prime is 8634529961. The next prime is 8634529987. The reversal of 8634529985 is 5899254368.

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

It is a de Polignac number, because none of the positive numbers 2^k-8634529985 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8634529987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87560 + ... + 157910.

It is an arithmetic number, because the mean of its divisors is an integer number (1295250672).

Almost surely, 2^8634529985 is an apocalyptic number.

It is an amenable number.

8634529985 is a deficient number, since it is larger than the sum of its proper divisors (1727475391).

8634529985 is a wasteful number, since it uses less digits than its factorization.

8634529985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94903.

The product of its digits is 18662400, while the sum is 59.

The square root of 8634529985 is about 92922.1716545626. The cubic root of 8634529985 is about 2051.5380078313.

The spelling of 8634529985 in words is "eight billion, six hundred thirty-four million, five hundred twenty-nine thousand, nine hundred eighty-five".