71768085547 has 8 divisors (see below), whose sum is σ = 75992262912. Its totient is φ = 67544188800.

The previous prime is 71768085539. The next prime is 71768085583. The reversal of 71768085547 is 74558086717.

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 71768085547 - 2³ = 71768085539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71768085491 and 71768085500.

It is not an unprimeable number, because it can be changed into a prime (71768088547) 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, 694797 + ... + 791377.

It is an arithmetic number, because the mean of its divisors is an integer number (9499032864).

Almost surely, 2^71768085547 is an apocalyptic number.

71768085547 is a deficient number, since it is larger than the sum of its proper divisors (4224177365).

71768085547 is a wasteful number, since it uses less digits than its factorization.

71768085547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140309.

The product of its (nonzero) digits is 13171200, while the sum is 58.

The spelling of 71768085547 in words is "seventy-one billion, seven hundred sixty-eight million, eighty-five thousand, five hundred forty-seven".