71478713572 has 24 divisors (see below), whose sum is σ = 142967302016. Its totient is φ = 30631618368.

The previous prime is 71478713533. The next prime is 71478713591. The reversal of 71478713572 is 27531787417.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365353 + ... + 525775.

Almost surely, 2^71478713572 is an apocalyptic number.

It is an amenable number.

71478713572 is an abundant number, since it is smaller than the sum of its proper divisors (71488588444).

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

71478713572 is a wasteful number, since it uses less digits than its factorization.

71478713572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176347 (or 176345 counting only the distinct ones).

The product of its digits is 2304960, while the sum is 52.

The spelling of 71478713572 in words is "seventy-one billion, four hundred seventy-eight million, seven hundred thirteen thousand, five hundred seventy-two".