85433409133 has 2 divisors, whose sum is σ = 85433409134. Its totient is φ = 85433409132.

The previous prime is 85433409119. The next prime is 85433409179. The reversal of 85433409133 is 33190433458.

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., 48198689764 + 37234719369 = 219542^2 + 192963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85433409133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85433409133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85433409533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42716704566 + 42716704567.

It is an arithmetic number, because the mean of its divisors is an integer number (42716704567).

Almost surely, 2^85433409133 is an apocalyptic number.

It is an amenable number.

85433409133 is a deficient number, since it is larger than the sum of its proper divisors (1).

85433409133 is an equidigital number, since it uses as much as digits as its factorization.

85433409133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 85433409133 in words is "eighty-five billion, four hundred thirty-three million, four hundred nine thousand, one hundred thirty-three".