85575516893 has 2 divisors, whose sum is σ = 85575516894. Its totient is φ = 85575516892.

The previous prime is 85575516847. The next prime is 85575516931. The reversal of 85575516893 is 39861557558.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84362945209 + 1212571684 = 290453^2 + 34822^2 .

It is a cyclic number.

It is not a de Polignac number, because 85575516893 - 2²⁴ = 85558739677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85575516823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42787758446 + 42787758447.

It is an arithmetic number, because the mean of its divisors is an integer number (42787758447).

Almost surely, 2^85575516893 is an apocalyptic number.

It is an amenable number.

85575516893 is a deficient number, since it is larger than the sum of its proper divisors (1).

85575516893 is an equidigital number, since it uses as much as digits as its factorization.

85575516893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360000, while the sum is 62.

The spelling of 85575516893 in words is "eighty-five billion, five hundred seventy-five million, five hundred sixteen thousand, eight hundred ninety-three".