85128441071 has 8 divisors (see below), whose sum is σ = 85304317200. Its totient is φ = 84952748160.

The previous prime is 85128441067. The next prime is 85128441091. The reversal of 85128441071 is 17014482158.

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

It is a cyclic number.

It is not a de Polignac number, because 85128441071 - 2² = 85128441067 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 (85128441011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904640 + ... + 994298.

It is an arithmetic number, because the mean of its divisors is an integer number (10663039650).

Almost surely, 2^85128441071 is an apocalyptic number.

85128441071 is a deficient number, since it is larger than the sum of its proper divisors (175876129).

85128441071 is a wasteful number, since it uses less digits than its factorization.

85128441071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91609.

The product of its (nonzero) digits is 71680, while the sum is 41.

The spelling of 85128441071 in words is "eighty-five billion, one hundred twenty-eight million, four hundred forty-one thousand, seventy-one".