85807868100868 has 6 divisors (see below), whose sum is σ = 150163769176526. Its totient is φ = 42903934050432.

The previous prime is 85807868100863. The next prime is 85807868100923. The reversal of 85807868100868 is 86800186870858.

It can be written as a sum of positive squares in only one way, i.e., 63103195837504 + 22704672263364 = 7943752^2 + 4764942^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85807868100868.

It is not an unprimeable number, because it can be changed into a prime (85807868100863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10725983512605 + ... + 10725983512612.

Almost surely, 2^{85807868100868} is an apocalyptic number.

It is an amenable number.

85807868100868 is a deficient number, since it is larger than the sum of its proper divisors (64355901075658).

85807868100868 is a wasteful number, since it uses less digits than its factorization.

85807868100868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21451967025221 (or 21451967025219 counting only the distinct ones).

The product of its (nonzero) digits is 330301440, while the sum is 73.

The spelling of 85807868100868 in words is "eighty-five trillion, eight hundred seven billion, eight hundred sixty-eight million, one hundred thousand, eight hundred sixty-eight".