85457193871 has 8 divisors (see below), whose sum is σ = 97753918464. Its totient is φ = 73182607800.

The previous prime is 85457193859. The next prime is 85457193901. The reversal of 85457193871 is 17839175458.

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 85457193871 - 2²⁷ = 85322976143 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 (85457191871) 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, 5526355 + ... + 5541796.

It is an arithmetic number, because the mean of its divisors is an integer number (12219239808).

Almost surely, 2^85457193871 is an apocalyptic number.

85457193871 is a deficient number, since it is larger than the sum of its proper divisors (12296724593).

85457193871 is a wasteful number, since it uses less digits than its factorization.

85457193871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11069261.

The product of its digits is 8467200, while the sum is 58.

The spelling of 85457193871 in words is "eighty-five billion, four hundred fifty-seven million, one hundred ninety-three thousand, eight hundred seventy-one".