71856670334 has 8 divisors (see below), whose sum is σ = 112471310160. Its totient is φ = 34366233616.

The previous prime is 71856670313. The next prime is 71856670343. The reversal of 71856670334 is 43307665817.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781050719 + ... + 781050810.

It is an arithmetic number, because the mean of its divisors is an integer number (14058913770).

Almost surely, 2^71856670334 is an apocalyptic number.

71856670334 is a deficient number, since it is larger than the sum of its proper divisors (40614639826).

71856670334 is a wasteful number, since it uses less digits than its factorization.

71856670334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562101554.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 71856670334 in words is "seventy-one billion, eight hundred fifty-six million, six hundred seventy thousand, three hundred thirty-four".