71148472423 has 18 divisors (see below), whose sum is σ = 81911320008. Its totient is φ = 60538592160.

The previous prime is 71148472399. The next prime is 71148472463. The reversal of 71148472423 is 32427484117.

It is a de Polignac number, because none of the positive numbers 2^k-71148472423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71148472423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71148472463) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 127734861 + ... + 127735417.

Almost surely, 2^71148472423 is an apocalyptic number.

71148472423 is a deficient number, since it is larger than the sum of its proper divisors (10762847585).

71148472423 is an frugal number, since it uses more digits than its factorization.

71148472423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483 (or 745 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The spelling of 71148472423 in words is "seventy-one billion, one hundred forty-eight million, four hundred seventy-two thousand, four hundred twenty-three".