85430423191 has 4 divisors (see below), whose sum is σ = 85859722000. Its totient is φ = 85001124384.

The previous prime is 85430423189. The next prime is 85430423207. The reversal of 85430423191 is 19132403458.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85430423191 - 2¹ = 85430423189 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 (85430420191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214649106 + ... + 214649503.

It is an arithmetic number, because the mean of its divisors is an integer number (21464930500).

Almost surely, 2^85430423191 is an apocalyptic number.

85430423191 is a deficient number, since it is larger than the sum of its proper divisors (429298809).

85430423191 is a wasteful number, since it uses less digits than its factorization.

85430423191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429298808.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 85430423191 in words is "eighty-five billion, four hundred thirty million, four hundred twenty-three thousand, one hundred ninety-one".