71745580847 has 8 divisors (see below), whose sum is σ = 72312604032. Its totient is φ = 71179767000.

The previous prime is 71745580831. The next prime is 71745580867. The reversal of 71745580847 is 74808554717.

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 71745580847 - 2⁴ = 71745580831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71745580792 and 71745580801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71745580867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183029 + ... + 420702.

It is an arithmetic number, because the mean of its divisors is an integer number (9039075504).

Almost surely, 2^71745580847 is an apocalyptic number.

71745580847 is a deficient number, since it is larger than the sum of its proper divisors (567023185).

71745580847 is a wasteful number, since it uses less digits than its factorization.

71745580847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604669.

The product of its (nonzero) digits is 8780800, while the sum is 56.

The spelling of 71745580847 in words is "seventy-one billion, seven hundred forty-five million, five hundred eighty thousand, eight hundred forty-seven".