85878132630085 has 4 divisors (see below), whose sum is σ = 103053759156108. Its totient is φ = 68702506104064.

The previous prime is 85878132629959. The next prime is 85878132630133. The reversal of 85878132630085 is 58003623187858.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19996226097796 + 65881906532289 = 4471714^2 + 8116767^2 .

It is a cyclic number.

It is not a de Polignac number, because 85878132630085 - 2⁷ = 85878132629957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85878132629999 and 85878132630026.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8587813263004 + ... + 8587813263013.

It is an arithmetic number, because the mean of its divisors is an integer number (25763439789027).

Almost surely, 2^{85878132630085} is an apocalyptic number.

It is an amenable number.

85878132630085 is a deficient number, since it is larger than the sum of its proper divisors (17175626526023).

85878132630085 is a wasteful number, since it uses less digits than its factorization.

85878132630085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17175626526022.

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 85878132630085 in words is "eighty-five trillion, eight hundred seventy-eight billion, one hundred thirty-two million, six hundred thirty thousand, eighty-five".