71368244644 has 12 divisors (see below), whose sum is σ = 124983712000. Its totient is φ = 35658612648.

The previous prime is 71368244639. The next prime is 71368244653. The reversal of 71368244644 is 44644286317.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6371124 + ... + 6382315.

Almost surely, 2^71368244644 is an apocalyptic number.

It is an amenable number.

71368244644 is a deficient number, since it is larger than the sum of its proper divisors (53615467356).

71368244644 is a wasteful number, since it uses less digits than its factorization.

71368244644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12754842 (or 12754840 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 49.

The spelling of 71368244644 in words is "seventy-one billion, three hundred sixty-eight million, two hundred forty-four thousand, six hundred forty-four".