22653173729 has 2 divisors, whose sum is σ = 22653173730. Its totient is φ = 22653173728.

The previous prime is 22653173657. The next prime is 22653173813. The reversal of 22653173729 is 92737135622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12729029329 + 9924144400 = 112823^2 + 99620^2 .

It is a cyclic number.

It is not a de Polignac number, because 22653173729 - 2¹² = 22653169633 is a prime.

It is not a weakly prime, because it can be changed into another prime (22653173329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11326586864 + 11326586865.

It is an arithmetic number, because the mean of its divisors is an integer number (11326586865).

Almost surely, 2^22653173729 is an apocalyptic number.

It is an amenable number.

22653173729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22653173729 is an equidigital number, since it uses as much as digits as its factorization.

22653173729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 47.

The spelling of 22653173729 in words is "twenty-two billion, six hundred fifty-three million, one hundred seventy-three thousand, seven hundred twenty-nine".