85043037773 has 2 divisors, whose sum is σ = 85043037774. Its totient is φ = 85043037772.

The previous prime is 85043037719. The next prime is 85043037841. The reversal of 85043037773 is 37773034058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75868846249 + 9174191524 = 275443^2 + 95782^2 .

It is a cyclic number.

It is not a de Polignac number, because 85043037773 - 2¹⁶ = 85042972237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85043037473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42521518886 + 42521518887.

It is an arithmetic number, because the mean of its divisors is an integer number (42521518887).

Almost surely, 2^85043037773 is an apocalyptic number.

It is an amenable number.

85043037773 is a deficient number, since it is larger than the sum of its proper divisors (1).

85043037773 is an equidigital number, since it uses as much as digits as its factorization.

85043037773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 85043037773 in words is "eighty-five billion, forty-three million, thirty-seven thousand, seven hundred seventy-three".