85789413317 has 2 divisors, whose sum is σ = 85789413318. Its totient is φ = 85789413316.

The previous prime is 85789413313. The next prime is 85789413401. The reversal of 85789413317 is 71331498758.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71481904321 + 14307508996 = 267361^2 + 119614^2 .

It is a cyclic number.

It is not a de Polignac number, because 85789413317 - 2² = 85789413313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85789413313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42894706658 + 42894706659.

It is an arithmetic number, because the mean of its divisors is an integer number (42894706659).

Almost surely, 2^85789413317 is an apocalyptic number.

It is an amenable number.

85789413317 is a deficient number, since it is larger than the sum of its proper divisors (1).

85789413317 is an equidigital number, since it uses as much as digits as its factorization.

85789413317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 56.

The spelling of 85789413317 in words is "eighty-five billion, seven hundred eighty-nine million, four hundred thirteen thousand, three hundred seventeen".