85685258658 has 8 divisors (see below), whose sum is σ = 171370517328. Its totient is φ = 28561752884.

The previous prime is 85685258657. The next prime is 85685258669.

85685258658 is nontrivially palindromic in base 10.

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

85685258658 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (85685258651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7140438216 + ... + 7140438227.

It is an arithmetic number, because the mean of its divisors is an integer number (21421314666).

Almost surely, 2^85685258658 is an apocalyptic number.

85685258658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85685258658 is a wasteful number, since it uses less digits than its factorization.

85685258658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280876448.

The product of its digits is 184320000, while the sum is 66.

The spelling of 85685258658 in words is "eighty-five billion, six hundred eighty-five million, two hundred fifty-eight thousand, six hundred fifty-eight".