85811260537193 has 2 divisors, whose sum is σ = 85811260537194. Its totient is φ = 85811260537192.

The previous prime is 85811260537141. The next prime is 85811260537201. The reversal of 85811260537193 is 39173506211858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83338403646169 + 2472856891024 = 9128987^2 + 1572532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85811260537193 is a prime.

It is not a weakly prime, because it can be changed into another prime (85811260537103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42905630268596 + 42905630268597.

It is an arithmetic number, because the mean of its divisors is an integer number (42905630268597).

Almost surely, 2^{85811260537193} is an apocalyptic number.

It is an amenable number.

85811260537193 is a deficient number, since it is larger than the sum of its proper divisors (1).

85811260537193 is an equidigital number, since it uses as much as digits as its factorization.

85811260537193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 85811260537193 in words is "eighty-five trillion, eight hundred eleven billion, two hundred sixty million, five hundred thirty-seven thousand, one hundred ninety-three".