85838319169 has 8 divisors (see below), whose sum is σ = 86071977320. Its totient is φ = 85604777856.

The previous prime is 85838319163. The next prime is 85838319227. The reversal of 85838319169 is 96191383858.

It can be written as a sum of positive squares in 4 ways, for example, as 1455041025 + 84383278144 = 38145^2 + 290488^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85838319169 is a prime.

It is a super-2 number, since 2×85838319169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85838319163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558627 + ... + 1612759.

It is an arithmetic number, because the mean of its divisors is an integer number (10758997165).

Almost surely, 2^85838319169 is an apocalyptic number.

It is an amenable number.

85838319169 is a deficient number, since it is larger than the sum of its proper divisors (233658151).

85838319169 is a wasteful number, since it uses less digits than its factorization.

85838319169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58419.

The product of its digits is 11197440, while the sum is 61.

The spelling of 85838319169 in words is "eighty-five billion, eight hundred thirty-eight million, three hundred nineteen thousand, one hundred sixty-nine".