22720878920847 has 8 divisors (see below), whose sum is σ = 30309362766720. Its totient is φ = 15139823844440.

The previous prime is 22720878920801. The next prime is 22720878920947. The reversal of 22720878920847 is 74802987802722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22720878920847 - 2⁶ = 22720878920783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22720878920947) by changing a digit.

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, 1857185229 + ... + 1857197462.

It is an arithmetic number, because the mean of its divisors is an integer number (3788670345840).

Almost surely, 2^{22720878920847} is an apocalyptic number.

22720878920847 is a deficient number, since it is larger than the sum of its proper divisors (7588483845873).

22720878920847 is a wasteful number, since it uses less digits than its factorization.

22720878920847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714384733.

The product of its (nonzero) digits is 101154816, while the sum is 66.

The spelling of 22720878920847 in words is "twenty-two trillion, seven hundred twenty billion, eight hundred seventy-eight million, nine hundred twenty thousand, eight hundred forty-seven".