71311503005 has 16 divisors (see below), whose sum is σ = 89591201280. Its totient is φ = 54418340928.

The previous prime is 71311503001. The next prime is 71311503047. The reversal of 71311503005 is 50030511317.

It is a cyclic number.

It is not a de Polignac number, because 71311503005 - 2² = 71311503001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71311503001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950637 + ... + 2974706.

It is an arithmetic number, because the mean of its divisors is an integer number (5599450080).

Almost surely, 2^71311503005 is an apocalyptic number.

It is an amenable number.

71311503005 is a deficient number, since it is larger than the sum of its proper divisors (18279698275).

71311503005 is a wasteful number, since it uses less digits than its factorization.

71311503005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5925460.

The product of its (nonzero) digits is 1575, while the sum is 26.

The spelling of 71311503005 in words is "seventy-one billion, three hundred eleven million, five hundred three thousand, five".