85517337773 has 4 divisors (see below), whose sum is σ = 97734100320. Its totient is φ = 73300575228.

The previous prime is 85517337767. The next prime is 85517337791. The reversal of 85517337773 is 37773371558.

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 85517337773 - 2⁴ = 85517337757 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 (85517337473) 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, 6108381263 + ... + 6108381276.

It is an arithmetic number, because the mean of its divisors is an integer number (24433525080).

Almost surely, 2^85517337773 is an apocalyptic number.

It is an amenable number.

85517337773 is a deficient number, since it is larger than the sum of its proper divisors (12216762547).

85517337773 is a wasteful number, since it uses less digits than its factorization.

85517337773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216762546.

The product of its digits is 12965400, while the sum is 56.

The spelling of 85517337773 in words is "eighty-five billion, five hundred seventeen million, three hundred thirty-seven thousand, seven hundred seventy-three".