71324061044 has 12 divisors (see below), whose sum is σ = 124832259300. Its totient is φ = 35657701248.

The previous prime is 71324061043. The next prime is 71324061047. The reversal of 71324061044 is 44016042317.

It can be written as a sum of positive squares in 2 ways, for example, as 55985238544 + 15338822500 = 236612^2 + 123850^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71324061044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71324061043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045109 + ... + 1111260.

It is an arithmetic number, because the mean of its divisors is an integer number (10402688275).

Almost surely, 2^71324061044 is an apocalyptic number.

It is an amenable number.

71324061044 is a deficient number, since it is larger than the sum of its proper divisors (53508198256).

71324061044 is a wasteful number, since it uses less digits than its factorization.

71324061044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164642 (or 2164640 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 71324061044 in words is "seventy-one billion, three hundred twenty-four million, sixty-one thousand, forty-four".