71474343872 has 28 divisors (see below), whose sum is σ = 141852944640. Its totient is φ = 35731869696.

The previous prime is 71474343713. The next prime is 71474343893. The reversal of 71474343872 is 27834347417.

It is a self number, because there is not a number n which added to its sum of digits gives 71474343872.

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 3 ways as a sum of consecutive naturals, for example, 371168 + ... + 529824.

Almost surely, 2^71474343872 is an apocalyptic number.

It is an amenable number.

71474343872 is a deficient number, since it is larger than the sum of its proper divisors (70378600768).

71474343872 is a wasteful number, since it uses less digits than its factorization.

71474343872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165708 (or 165698 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 50.

The spelling of 71474343872 in words is "seventy-one billion, four hundred seventy-four million, three hundred forty-three thousand, eight hundred seventy-two".