85630908509 has 8 divisors (see below), whose sum is σ = 85726918368. Its totient is φ = 85534955280.

The previous prime is 85630908497. The next prime is 85630908547. The reversal of 85630908509 is 90580903658.

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

It is a cyclic number.

It is not a de Polignac number, because 85630908509 - 2²⁰ = 85629859933 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 (85630908569) 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, 3476174 + ... + 3500720.

It is an arithmetic number, because the mean of its divisors is an integer number (10715864796).

Almost surely, 2^85630908509 is an apocalyptic number.

It is an amenable number.

85630908509 is a deficient number, since it is larger than the sum of its proper divisors (96009859).

85630908509 is a wasteful number, since it uses less digits than its factorization.

85630908509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28315.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 85630908509 in words is "eighty-five billion, six hundred thirty million, nine hundred eight thousand, five hundred nine".