71720127062 has 32 divisors (see below), whose sum is σ = 113862855168. Its totient is φ = 33810993216.

The previous prime is 71720127047. The next prime is 71720127071. The reversal of 71720127062 is 26072102717.

It is a congruent number.

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, 6720743 + ... + 6731405.

It is an arithmetic number, because the mean of its divisors is an integer number (3558214224).

Almost surely, 2^71720127062 is an apocalyptic number.

71720127062 is a deficient number, since it is larger than the sum of its proper divisors (42142728106).

71720127062 is a wasteful number, since it uses less digits than its factorization.

71720127062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12764.

The product of its (nonzero) digits is 16464, while the sum is 35.

Adding to 71720127062 its reverse (26072102717), we get a palindrome (97792229779).

The spelling of 71720127062 in words is "seventy-one billion, seven hundred twenty million, one hundred twenty-seven thousand, sixty-two".