22728771705448 has 32 divisors (see below), whose sum is σ = 44859961152000. Its totient is φ = 10766129886720.

The previous prime is 22728771705433. The next prime is 22728771705473. The reversal of 22728771705448 is 84450717782722.

It is a self number, because there is not a number n which added to its sum of digits gives 22728771705448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12319128 + ... + 14043448.

It is an arithmetic number, because the mean of its divisors is an integer number (1401873786000).

Almost surely, 2^{22728771705448} is an apocalyptic number.

It is an amenable number.

22728771705448 is a deficient number, since it is larger than the sum of its proper divisors (22131189446552).

22728771705448 is a wasteful number, since it uses less digits than its factorization.

22728771705448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811065 (or 1811061 counting only the distinct ones).

The product of its (nonzero) digits is 98344960, while the sum is 64.

The spelling of 22728771705448 in words is "twenty-two trillion, seven hundred twenty-eight billion, seven hundred seventy-one million, seven hundred five thousand, four hundred forty-eight".