72643271060756 has 24 divisors (see below), whose sum is σ = 139021685705280. Its totient is φ = 32938935969600.

The previous prime is 72643271060653. The next prime is 72643271060761. The reversal of 72643271060756 is 65706017234627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018299160 + ... + 2018335151.

It is an arithmetic number, because the mean of its divisors is an integer number (5792570237720).

Almost surely, 2^{72643271060756} is an apocalyptic number.

It is an amenable number.

72643271060756 is a deficient number, since it is larger than the sum of its proper divisors (66378414644524).

72643271060756 is a wasteful number, since it uses less digits than its factorization.

72643271060756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036634735 (or 4036634733 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 56.

The spelling of 72643271060756 in words is "seventy-two trillion, six hundred forty-three billion, two hundred seventy-one million, sixty thousand, seven hundred fifty-six".