71731871119 has 8 divisors (see below), whose sum is σ = 71983184768. Its totient is φ = 71480996640.

The previous prime is 71731871117. The next prime is 71731871131. The reversal of 71731871119 is 91117813717.

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 71731871119 - 2¹ = 71731871117 is a prime.

It is a super-2 number, since 2×71731871119² (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 (71731871117) 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, 219169 + ... + 437605.

It is an arithmetic number, because the mean of its divisors is an integer number (8997898096).

Almost surely, 2^71731871119 is an apocalyptic number.

71731871119 is a deficient number, since it is larger than the sum of its proper divisors (251313649).

71731871119 is a wasteful number, since it uses less digits than its factorization.

71731871119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219585.

The product of its digits is 74088, while the sum is 46.

The spelling of 71731871119 in words is "seventy-one billion, seven hundred thirty-one million, eight hundred seventy-one thousand, one hundred nineteen".