23442647329 has 2 divisors, whose sum is σ = 23442647330. Its totient is φ = 23442647328.

The previous prime is 23442647323. The next prime is 23442647359. The reversal of 23442647329 is 92374624432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21882397329 + 1560250000 = 147927^2 + 39500^2 .

It is a cyclic number.

It is not a de Polignac number, because 23442647329 - 2⁷ = 23442647201 is a prime.

It is not a weakly prime, because it can be changed into another prime (23442647323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721323664 + 11721323665.

It is an arithmetic number, because the mean of its divisors is an integer number (11721323665).

Almost surely, 2^23442647329 is an apocalyptic number.

It is an amenable number.

23442647329 is a deficient number, since it is larger than the sum of its proper divisors (1).

23442647329 is an equidigital number, since it uses as much as digits as its factorization.

23442647329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 46.

The spelling of 23442647329 in words is "twenty-three billion, four hundred forty-two million, six hundred forty-seven thousand, three hundred twenty-nine".