71712405471 has 12 divisors (see below), whose sum is σ = 111227404632. Its totient is φ = 40978517328.

The previous prime is 71712405463. The next prime is 71712405491. The reversal of 71712405471 is 17450421717.

It is not a de Polignac number, because 71712405471 - 2³ = 71712405463 is a prime.

It is a super-3 number, since 3×71712405471³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71712405421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243919600 + ... + 243919893.

It is an arithmetic number, because the mean of its divisors is an integer number (9268950386).

Almost surely, 2^71712405471 is an apocalyptic number.

71712405471 is a deficient number, since it is larger than the sum of its proper divisors (39514999161).

71712405471 is a wasteful number, since it uses less digits than its factorization.

71712405471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487839510 (or 487839503 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 39.

The spelling of 71712405471 in words is "seventy-one billion, seven hundred twelve million, four hundred five thousand, four hundred seventy-one".