85546898231 has 2 divisors, whose sum is σ = 85546898232. Its totient is φ = 85546898230.

The previous prime is 85546898219. The next prime is 85546898263. The reversal of 85546898231 is 13289864558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85546898231 - 2¹⁰ = 85546897207 is a prime.

It is a super-2 number, since 2×85546898231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85546894231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42773449115 + 42773449116.

It is an arithmetic number, because the mean of its divisors is an integer number (42773449116).

Almost surely, 2^85546898231 is an apocalyptic number.

85546898231 is a deficient number, since it is larger than the sum of its proper divisors (1).

85546898231 is an equidigital number, since it uses as much as digits as its factorization.

85546898231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16588800, while the sum is 59.

The spelling of 85546898231 in words is "eighty-five billion, five hundred forty-six million, eight hundred ninety-eight thousand, two hundred thirty-one".