71345407647 has 8 divisors (see below), whose sum is σ = 95250915760. Its totient is φ = 47501752320.

The previous prime is 71345407643. The next prime is 71345407649. The reversal of 71345407647 is 74670454317.

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

It is not a de Polignac number, because 71345407647 - 2² = 71345407643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71345407596 and 71345407605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71345407643) 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, 15460504 + ... + 15465117.

It is an arithmetic number, because the mean of its divisors is an integer number (11906364470).

Almost surely, 2^71345407647 is an apocalyptic number.

71345407647 is a deficient number, since it is larger than the sum of its proper divisors (23905508113).

71345407647 is a wasteful number, since it uses less digits than its factorization.

71345407647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30926393.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 71345407647 in words is "seventy-one billion, three hundred forty-five million, four hundred seven thousand, six hundred forty-seven".