71773147613 has 8 divisors (see below), whose sum is σ = 73339649856. Its totient is φ = 70222079200.

The previous prime is 71773147571. The next prime is 71773147627. The reversal of 71773147613 is 31674137717.

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 71773147613 - 2¹² = 71773143517 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 (71773147673) 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, 3849056 + ... + 3867657.

It is an arithmetic number, because the mean of its divisors is an integer number (9167456232).

Almost surely, 2^71773147613 is an apocalyptic number.

It is an amenable number.

71773147613 is a deficient number, since it is larger than the sum of its proper divisors (1566502243).

71773147613 is a wasteful number, since it uses less digits than its factorization.

71773147613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716915.

The product of its digits is 518616, while the sum is 47.

The spelling of 71773147613 in words is "seventy-one billion, seven hundred seventy-three million, one hundred forty-seven thousand, six hundred thirteen".