8691538085 has 8 divisors (see below), whose sum is σ = 10484453376. Its totient is φ = 6916825360.

The previous prime is 8691538081. The next prime is 8691538109. The reversal of 8691538085 is 5808351968.

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

It is not a de Polignac number, because 8691538085 - 2² = 8691538081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8691538081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4549589 + ... + 4551498.

It is an arithmetic number, because the mean of its divisors is an integer number (1310556672).

Almost surely, 2^8691538085 is an apocalyptic number.

It is an amenable number.

8691538085 is a deficient number, since it is larger than the sum of its proper divisors (1792915291).

8691538085 is a wasteful number, since it uses less digits than its factorization.

8691538085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101283.

The product of its (nonzero) digits is 2073600, while the sum is 53.

The square root of 8691538085 is about 93228.4188699991. The cubic root of 8691538085 is about 2056.0430912361.

It can be divided in two parts, 86915 and 38085, that added together give a cube (125000 = 50³).

The spelling of 8691538085 in words is "eight billion, six hundred ninety-one million, five hundred thirty-eight thousand, eighty-five".