20272668786728 has 16 divisors (see below), whose sum is σ = 38162693237760. Its totient is φ = 10095950590000.

The previous prime is 20272668786719. The next prime is 20272668786739. The reversal of 20272668786728 is 82768786627202.

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, 5047973288 + ... + 5047977303.

It is an arithmetic number, because the mean of its divisors is an integer number (2385168327360).

Almost surely, 2^{20272668786728} is an apocalyptic number.

It is an amenable number.

20272668786728 is a deficient number, since it is larger than the sum of its proper divisors (17890024451032).

20272668786728 is a wasteful number, since it uses less digits than its factorization.

20272668786728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095950848 (or 10095950844 counting only the distinct ones).

The product of its (nonzero) digits is 606928896, while the sum is 71.

The spelling of 20272668786728 in words is "twenty trillion, two hundred seventy-two billion, six hundred sixty-eight million, seven hundred eighty-six thousand, seven hundred twenty-eight".