85380441793 has 16 divisors (see below), whose sum is σ = 90669569616. Its totient is φ = 80121323520.

The previous prime is 85380441709. The next prime is 85380441857. The reversal of 85380441793 is 39714408358.

It can be written as a sum of positive squares in 8 ways, for example, as 14663272464 + 70717169329 = 121092^2 + 265927^2 .

It is a cyclic number.

It is not a de Polignac number, because 85380441793 - 2¹⁷ = 85380310721 is a prime.

It is a super-2 number, since 2×85380441793² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85380441793.

It is not an unprimeable number, because it can be changed into a prime (85380441593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8381163 + ... + 8391343.

It is an arithmetic number, because the mean of its divisors is an integer number (5666848101).

Almost surely, 2^85380441793 is an apocalyptic number.

It is an amenable number.

85380441793 is a deficient number, since it is larger than the sum of its proper divisors (5289127823).

85380441793 is a wasteful number, since it uses less digits than its factorization.

85380441793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11604.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 85380441793 in words is "eighty-five billion, three hundred eighty million, four hundred forty-one thousand, seven hundred ninety-three".