24423978889 has 2 divisors, whose sum is σ = 24423978890. Its totient is φ = 24423978888.

The previous prime is 24423978877. The next prime is 24423978911. The reversal of 24423978889 is 98887932442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19790862400 + 4633116489 = 140680^2 + 68067^2 .

It is a cyclic number.

It is not a de Polignac number, because 24423978889 - 2⁹ = 24423978377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24423978889.

It is not a weakly prime, because it can be changed into another prime (24423978589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12211989444 + 12211989445.

It is an arithmetic number, because the mean of its divisors is an integer number (12211989445).

Almost surely, 2^24423978889 is an apocalyptic number.

It is an amenable number.

24423978889 is a deficient number, since it is larger than the sum of its proper divisors (1).

24423978889 is an equidigital number, since it uses as much as digits as its factorization.

24423978889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55738368, while the sum is 64.

The spelling of 24423978889 in words is "twenty-four billion, four hundred twenty-three million, nine hundred seventy-eight thousand, eight hundred eighty-nine".