85865629158086 has 4 divisors (see below), whose sum is σ = 128798443737132. Its totient is φ = 42932814579042.

The previous prime is 85865629158077. The next prime is 85865629158121. The reversal of 85865629158086 is 68085192656858.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×85865629158086³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85865629157998 and 85865629158016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21466407289520 + ... + 21466407289523.

It is an arithmetic number, because the mean of its divisors is an integer number (32199610934283).

Almost surely, 2^{85865629158086} is an apocalyptic number.

85865629158086 is a deficient number, since it is larger than the sum of its proper divisors (42932814579046).

85865629158086 is a wasteful number, since it uses less digits than its factorization.

85865629158086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42932814579045.

The product of its (nonzero) digits is 1990656000, while the sum is 77.

The spelling of 85865629158086 in words is "eighty-five trillion, eight hundred sixty-five billion, six hundred twenty-nine million, one hundred fifty-eight thousand, eighty-six".