71726868143 has 8 divisors (see below), whose sum is σ = 83879925888. Its totient is φ = 60050400984.

The previous prime is 71726868139. The next prime is 71726868179. The reversal of 71726868143 is 34186862717.

It is a happy number.

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

It is not a de Polignac number, because 71726868143 - 2² = 71726868139 is a prime.

It is a super-2 number, since 2×71726868143² (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 (71726868443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119147321 + ... + 119147922.

It is an arithmetic number, because the mean of its divisors is an integer number (10484990736).

Almost surely, 2^71726868143 is an apocalyptic number.

71726868143 is a deficient number, since it is larger than the sum of its proper divisors (12153057745).

71726868143 is a wasteful number, since it uses less digits than its factorization.

71726868143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238295293.

The product of its digits is 2709504, while the sum is 53.

The spelling of 71726868143 in words is "seventy-one billion, seven hundred twenty-six million, eight hundred sixty-eight thousand, one hundred forty-three".