71017838319 has 4 divisors (see below), whose sum is σ = 94690451096. Its totient is φ = 47345225544.

The previous prime is 71017838303. The next prime is 71017838321. The reversal of 71017838319 is 91383871017.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71017838319 - 2⁴ = 71017838303 is a prime.

It is a super-2 number, since 2×71017838319² (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 (71017838329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11836306384 + ... + 11836306389.

It is an arithmetic number, because the mean of its divisors is an integer number (23672612774).

Almost surely, 2^71017838319 is an apocalyptic number.

71017838319 is a deficient number, since it is larger than the sum of its proper divisors (23672612777).

71017838319 is a wasteful number, since it uses less digits than its factorization.

71017838319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23672612776.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 71017838319 in words is "seventy-one billion, seventeen million, eight hundred thirty-eight thousand, three hundred nineteen".