85806324489 has 4 divisors (see below), whose sum is σ = 114408432656. Its totient is φ = 57204216324.

The previous prime is 85806324397. The next prime is 85806324491. The reversal of 85806324489 is 98442360858.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85806324489 - 2⁷ = 85806324361 is a prime.

It is a super-2 number, since 2×85806324489² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85806304489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14301054079 + ... + 14301054084.

It is an arithmetic number, because the mean of its divisors is an integer number (28602108164).

Almost surely, 2^85806324489 is an apocalyptic number.

It is an amenable number.

85806324489 is a deficient number, since it is larger than the sum of its proper divisors (28602108167).

85806324489 is a wasteful number, since it uses less digits than its factorization.

85806324489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28602108166.

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 85806324489 in words is "eighty-five billion, eight hundred six million, three hundred twenty-four thousand, four hundred eighty-nine".