24543132989 has 2 divisors, whose sum is σ = 24543132990. Its totient is φ = 24543132988.

The previous prime is 24543132983. The next prime is 24543133009. The reversal of 24543132989 is 98923134542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24050736889 + 492396100 = 155083^2 + 22190^2 .

It is a cyclic number.

It is not a de Polignac number, because 24543132989 - 2¹⁶ = 24543067453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24543132983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12271566494 + 12271566495.

It is an arithmetic number, because the mean of its divisors is an integer number (12271566495).

Almost surely, 2^24543132989 is an apocalyptic number.

It is an amenable number.

24543132989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24543132989 is an equidigital number, since it uses as much as digits as its factorization.

24543132989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The spelling of 24543132989 in words is "twenty-four billion, five hundred forty-three million, one hundred thirty-two thousand, nine hundred eighty-nine".