72881205837670 has 16 divisors (see below), whose sum is σ = 131206449828240. Its totient is φ = 29147975819424.

The previous prime is 72881205837659. The next prime is 72881205837679. The reversal of 72881205837670 is 7673850218827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72881205837679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563246532 + ... + 563375911.

It is an arithmetic number, because the mean of its divisors is an integer number (8200403114265).

Almost surely, 2^{72881205837670} is an apocalyptic number.

72881205837670 is a deficient number, since it is larger than the sum of its proper divisors (58325243990570).

72881205837670 is a wasteful number, since it uses less digits than its factorization.

72881205837670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126628919.

The product of its (nonzero) digits is 63221760, while the sum is 64.

The spelling of 72881205837670 in words is "seventy-two trillion, eight hundred eighty-one billion, two hundred five million, eight hundred thirty-seven thousand, six hundred seventy".