71143318347 has 4 divisors (see below), whose sum is σ = 94857757800. Its totient is φ = 47428878896.

The previous prime is 71143318321. The next prime is 71143318349. The reversal of 71143318347 is 74381334117.

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

It is a cyclic number.

It is not a de Polignac number, because 71143318347 - 2⁶ = 71143318283 is a prime.

It is a super-2 number, since 2×71143318347² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71143318299 and 71143318308.

It is not an unprimeable number, because it can be changed into a prime (71143318349) 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, 11857219722 + ... + 11857219727.

It is an arithmetic number, because the mean of its divisors is an integer number (23714439450).

Almost surely, 2^71143318347 is an apocalyptic number.

71143318347 is a deficient number, since it is larger than the sum of its proper divisors (23714439453).

71143318347 is a wasteful number, since it uses less digits than its factorization.

71143318347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23714439452.

The product of its digits is 169344, while the sum is 42.

The spelling of 71143318347 in words is "seventy-one billion, one hundred forty-three million, three hundred eighteen thousand, three hundred forty-seven".