85609785629 has 8 divisors (see below), whose sum is σ = 90119700000. Its totient is φ = 81100284912.

The previous prime is 85609785623. The next prime is 85609785637. The reversal of 85609785629 is 92658790658.

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-85609785629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85609785623) 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, 379202 + ... + 561260.

It is an arithmetic number, because the mean of its divisors is an integer number (11264962500).

Almost surely, 2^85609785629 is an apocalyptic number.

It is an amenable number.

85609785629 is a deficient number, since it is larger than the sum of its proper divisors (4509914371).

85609785629 is a wasteful number, since it uses less digits than its factorization.

85609785629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206827.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 85609785629 in words is "eighty-five billion, six hundred nine million, seven hundred eighty-five thousand, six hundred twenty-nine".