71327879571984 has 80 divisors (see below), whose sum is σ = 214560414076032. Its totient is φ = 19994877287424.

The previous prime is 71327879571937. The next prime is 71327879572067. The reversal of 71327879571984 is 48917597872317.

It is a super-2 number, since 2×71327879571984² (a number of 29 digits) contains 22 as substring.

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, 2002674229 + ... + 2002709844.

Almost surely, 2^{71327879571984} is an apocalyptic number.

It is an amenable number.

71327879571984 is an abundant number, since it is smaller than the sum of its proper divisors (143232534504048).

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

71327879571984 is a wasteful number, since it uses less digits than its factorization.

71327879571984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005384144 (or 4005384138 counting only the distinct ones).

The product of its digits is 1493614080, while the sum is 78.

The spelling of 71327879571984 in words is "seventy-one trillion, three hundred twenty-seven billion, eight hundred seventy-nine million, five hundred seventy-one thousand, nine hundred eighty-four".