71312164809999 has 8 divisors (see below), whose sum is σ = 95083084911360. Its totient is φ = 47541343957656.

The previous prime is 71312164809961. The next prime is 71312164810063. The reversal of 71312164809999 is 99990846121317.

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

It is not a de Polignac number, because 71312164809999 - 2¹⁶ = 71312164744463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71312164809499) 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, 23119209 + ... + 26021570.

It is an arithmetic number, because the mean of its divisors is an integer number (11885385613920).

Almost surely, 2^{71312164809999} is an apocalyptic number.

71312164809999 is a deficient number, since it is larger than the sum of its proper divisors (23770920101361).

71312164809999 is a wasteful number, since it uses less digits than its factorization.

71312164809999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49624509.

The product of its (nonzero) digits is 52907904, while the sum is 69.

The spelling of 71312164809999 in words is "seventy-one trillion, three hundred twelve billion, one hundred sixty-four million, eight hundred nine thousand, nine hundred ninety-nine".