71427571432 has 64 divisors (see below), whose sum is σ = 159783782400. Its totient is φ = 29268043200.

The previous prime is 71427571429. The next prime is 71427571441. The reversal of 71427571432 is 23417572417.

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 15 ways as a sum of consecutive naturals, for example, 3274819 + ... + 3296557.

It is an arithmetic number, because the mean of its divisors is an integer number (2496621600).

Almost surely, 2^71427571432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71427571432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79891891200).

71427571432 is an abundant number, since it is smaller than the sum of its proper divisors (88356210968).

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

71427571432 is a wasteful number, since it uses less digits than its factorization.

71427571432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24326 (or 24322 counting only the distinct ones).

The product of its digits is 329280, while the sum is 43.

The spelling of 71427571432 in words is "seventy-one billion, four hundred twenty-seven million, five hundred seventy-one thousand, four hundred thirty-two".