71447234531 has 8 divisors (see below), whose sum is σ = 73819619328. Its totient is φ = 69079077000.

The previous prime is 71447234527. The next prime is 71447234533. The reversal of 71447234531 is 13543274417.

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 71447234531 - 2² = 71447234527 is a prime.

It is a super-2 number, since 2×71447234531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71447234533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022435 + ... + 1090076.

It is an arithmetic number, because the mean of its divisors is an integer number (9227452416).

Almost surely, 2^71447234531 is an apocalyptic number.

71447234531 is a deficient number, since it is larger than the sum of its proper divisors (2372384797).

71447234531 is a wasteful number, since it uses less digits than its factorization.

71447234531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113633.

The product of its digits is 282240, while the sum is 41.

The spelling of 71447234531 in words is "seventy-one billion, four hundred forty-seven million, two hundred thirty-four thousand, five hundred thirty-one".