71715667272 has 64 divisors (see below), whose sum is σ = 183320383680. Its totient is φ = 23373668352.

The previous prime is 71715667229. The next prime is 71715667279. The reversal of 71715667272 is 27276651717.

It is not an unprimeable number, because it can be changed into a prime (71715667279) 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, 7648 + ... + 378800.

It is an arithmetic number, because the mean of its divisors is an integer number (2864380995).

Almost surely, 2^71715667272 is an apocalyptic number.

It is an amenable number.

71715667272 is an abundant number, since it is smaller than the sum of its proper divisors (111604716408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71715667272 is a wasteful number, since it uses less digits than its factorization.

71715667272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371342 (or 371338 counting only the distinct ones).

The product of its digits is 1728720, while the sum is 51.

The spelling of 71715667272 in words is "seventy-one billion, seven hundred fifteen million, six hundred sixty-seven thousand, two hundred seventy-two".