85547558393 has 4 divisors (see below), whose sum is σ = 93324609168. Its totient is φ = 77770507620.

The previous prime is 85547558351. The next prime is 85547558431. The reversal of 85547558393 is 39385574558.

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 a cyclic number.

It is not a de Polignac number, because 85547558393 - 2⁸ = 85547558137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85547258393) 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, 3888525371 + ... + 3888525392.

It is an arithmetic number, because the mean of its divisors is an integer number (23331152292).

Almost surely, 2^85547558393 is an apocalyptic number.

It is an amenable number.

85547558393 is a deficient number, since it is larger than the sum of its proper divisors (7777050775).

85547558393 is a wasteful number, since it uses less digits than its factorization.

85547558393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7777050774.

The product of its digits is 90720000, while the sum is 62.

The spelling of 85547558393 in words is "eighty-five billion, five hundred forty-seven million, five hundred fifty-eight thousand, three hundred ninety-three".