71323510547 has 8 divisors (see below), whose sum is σ = 72947713536. Its totient is φ = 69703752712.

The previous prime is 71323510541. The next prime is 71323510597. The reversal of 71323510547 is 74501532317.

It is a happy number.

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 71323510547 - 2¹⁴ = 71323494163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71323510547.

It is not an unprimeable number, because it can be changed into a prime (71323510541) 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, 1078823 + ... + 1143024.

It is an arithmetic number, because the mean of its divisors is an integer number (9118464192).

Almost surely, 2^71323510547 is an apocalyptic number.

71323510547 is a deficient number, since it is larger than the sum of its proper divisors (1624202989).

71323510547 is a wasteful number, since it uses less digits than its factorization.

71323510547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222577.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 71323510547 in words is "seventy-one billion, three hundred twenty-three million, five hundred ten thousand, five hundred forty-seven".