71730634309 has 8 divisors (see below), whose sum is σ = 76014963648. Its totient is φ = 67453513920.

The previous prime is 71730634291. The next prime is 71730634333. The reversal of 71730634309 is 90343603717.

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

It is not a de Polignac number, because 71730634309 - 2⁹ = 71730633797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71730614309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781737 + ... + 1821550.

It is an arithmetic number, because the mean of its divisors is an integer number (9501870456).

Almost surely, 2^71730634309 is an apocalyptic number.

It is an amenable number.

71730634309 is a deficient number, since it is larger than the sum of its proper divisors (4284329339).

71730634309 is a wasteful number, since it uses less digits than its factorization.

71730634309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604475.

The product of its (nonzero) digits is 285768, while the sum is 43.

The spelling of 71730634309 in words is "seventy-one billion, seven hundred thirty million, six hundred thirty-four thousand, three hundred nine".