71223153327209 has 16 divisors (see below), whose sum is σ = 76904745321600. Its totient is φ = 65570767871616.

The previous prime is 71223153327173. The next prime is 71223153327211. The reversal of 71223153327209 is 90272335132217.

It is a cyclic number.

It is not a de Polignac number, because 71223153327209 - 2²⁴ = 71223136549993 is a prime.

It is a super-2 number, since 2×71223153327209² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71223153327229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046157 + ... + 12317685.

It is an arithmetic number, because the mean of its divisors is an integer number (4806546582600).

Almost surely, 2^{71223153327209} is an apocalyptic number.

It is an amenable number.

71223153327209 is a deficient number, since it is larger than the sum of its proper divisors (5681591994391).

71223153327209 is a wasteful number, since it uses less digits than its factorization.

71223153327209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273104.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 71223153327209 in words is "seventy-one trillion, two hundred twenty-three billion, one hundred fifty-three million, three hundred twenty-seven thousand, two hundred nine".