71930320244672 has 28 divisors (see below), whose sum is σ = 142737510831240. Its totient is φ = 35964963184896.

The previous prime is 71930320244663. The next prime is 71930320244693. The reversal of 71930320244672 is 27644202303917.

It is a self number, because there is not a number n which added to its sum of digits gives 71930320244672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9073943 + ... + 15039849.

Almost surely, 2^{71930320244672} is an apocalyptic number.

It is an amenable number.

71930320244672 is a deficient number, since it is larger than the sum of its proper divisors (70807190586568).

71930320244672 is a wasteful number, since it uses less digits than its factorization.

71930320244672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6154308 (or 6154298 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 71930320244672 in words is "seventy-one trillion, nine hundred thirty billion, three hundred twenty million, two hundred forty-four thousand, six hundred seventy-two".