71085810469 has 8 divisors (see below), whose sum is σ = 72752601152. Its totient is φ = 69419639520.

The previous prime is 71085810461. The next prime is 71085810511. The reversal of 71085810469 is 96401858017.

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

It is a cyclic number.

It is not a de Polignac number, because 71085810469 - 2³ = 71085810461 is a prime.

It is a super-2 number, since 2×71085810469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71085810461) 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, 81337 + ... + 385729.

It is an arithmetic number, because the mean of its divisors is an integer number (9094075144).

Almost surely, 2^71085810469 is an apocalyptic number.

It is an amenable number.

71085810469 is a deficient number, since it is larger than the sum of its proper divisors (1666790683).

71085810469 is a wasteful number, since it uses less digits than its factorization.

71085810469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309867.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 71085810469 in words is "seventy-one billion, eighty-five million, eight hundred ten thousand, four hundred sixty-nine".