71712148772 has 48 divisors (see below), whose sum is σ = 137731285440. Its totient is φ = 32400240000.

The previous prime is 71712148741. The next prime is 71712148787. The reversal of 71712148772 is 27784121717.

It is a super-2 number, since 2×71712148772² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5615018 + ... + 5627774.

It is an arithmetic number, because the mean of its divisors is an integer number (2869401780).

Almost surely, 2^71712148772 is an apocalyptic number.

It is an amenable number.

71712148772 is a deficient number, since it is larger than the sum of its proper divisors (66019136668).

71712148772 is a wasteful number, since it uses less digits than its factorization.

71712148772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13532 (or 13530 counting only the distinct ones).

The product of its digits is 307328, while the sum is 47.

The spelling of 71712148772 in words is "seventy-one billion, seven hundred twelve million, one hundred forty-eight thousand, seven hundred seventy-two".