71727456120 has 64 divisors (see below), whose sum is σ = 216019746720. Its totient is φ = 19052888064.

The previous prime is 71727456083. The next prime is 71727456139. The reversal of 71727456120 is 2165472717.

It is a super-2 number, since 2×71727456120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132057 + ... + 1193736.

Almost surely, 2^71727456120 is an apocalyptic number.

It is an amenable number.

71727456120 is an abundant number, since it is smaller than the sum of its proper divisors (144292290600).

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

71727456120 is a wasteful number, since it uses less digits than its factorization.

71727456120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326064 (or 2326060 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 71727456120 in words is "seventy-one billion, seven hundred twenty-seven million, four hundred fifty-six thousand, one hundred twenty".