22973447288981 has 32 divisors (see below), whose sum is σ = 28102444312320. Its totient is φ = 18331657814016.

The previous prime is 22973447288929. The next prime is 22973447289007. The reversal of 22973447288981 is 18988274437922.

It is a cyclic number.

It is not a de Polignac number, because 22973447288981 - 2¹⁸ = 22973447026837 is a prime.

It is a super-2 number, since 2×22973447288981² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22973447288899 and 22973447288908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22973447228981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19667210 + ... + 20802548.

It is an arithmetic number, because the mean of its divisors is an integer number (878201384760).

Almost surely, 2^{22973447288981} is an apocalyptic number.

It is an amenable number.

22973447288981 is a deficient number, since it is larger than the sum of its proper divisors (5128997023339).

22973447288981 is a wasteful number, since it uses less digits than its factorization.

22973447288981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137213.

The product of its digits is 780337152, while the sum is 74.

The spelling of 22973447288981 in words is "twenty-two trillion, nine hundred seventy-three billion, four hundred forty-seven million, two hundred eighty-eight thousand, nine hundred eighty-one".