71870450944 has 36 divisors (see below), whose sum is σ = 143478610660. Its totient is φ = 35930603520.

The previous prime is 71870450941. The next prime is 71870450959. The reversal of 71870450944 is 44905407817.

It can be written as a sum of positive squares in 2 ways, for example, as 25779513600 + 46090937344 = 160560^2 + 214688^2 .

It is a super-2 number, since 2×71870450944² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71870450941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2887834 + ... + 2912614.

Almost surely, 2^71870450944 is an apocalyptic number.

It is an amenable number.

71870450944 is a deficient number, since it is larger than the sum of its proper divisors (71608159716).

71870450944 is a wasteful number, since it uses less digits than its factorization.

71870450944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36126 (or 36112 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 71870450944 in words is "seventy-one billion, eight hundred seventy million, four hundred fifty thousand, nine hundred forty-four".