71119143809 has 8 divisors (see below), whose sum is σ = 81540371328. Its totient is φ = 60763253760.

The previous prime is 71119143787. The next prime is 71119143829. The reversal of 71119143809 is 90834191117.

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 71119143809 - 2¹² = 71119139713 is a prime.

It is a super-2 number, since 2×71119143809² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71119143809.

It is not an unprimeable number, because it can be changed into a prime (71119143829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16332032 + ... + 16336385.

It is an arithmetic number, because the mean of its divisors is an integer number (10192546416).

Almost surely, 2^71119143809 is an apocalyptic number.

It is an amenable number.

71119143809 is a deficient number, since it is larger than the sum of its proper divisors (10421227519).

71119143809 is a wasteful number, since it uses less digits than its factorization.

71119143809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32668735.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 71119143809 in words is "seventy-one billion, one hundred nineteen million, one hundred forty-three thousand, eight hundred nine".