85387352191 has 8 divisors (see below), whose sum is σ = 90583678944. Its totient is φ = 80210307840.

The previous prime is 85387352177. The next prime is 85387352203. The reversal of 85387352191 is 19125378358.

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 85387352191 - 2¹³ = 85387343999 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 (85387352291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4811475 + ... + 4829188.

It is an arithmetic number, because the mean of its divisors is an integer number (11322959868).

Almost surely, 2^85387352191 is an apocalyptic number.

85387352191 is a deficient number, since it is larger than the sum of its proper divisors (5196326753).

85387352191 is a wasteful number, since it uses less digits than its factorization.

85387352191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9641201.

The product of its digits is 1814400, while the sum is 52.

The spelling of 85387352191 in words is "eighty-five billion, three hundred eighty-seven million, three hundred fifty-two thousand, one hundred ninety-one".