24236978789 has 2 divisors, whose sum is σ = 24236978790. Its totient is φ = 24236978788.

The previous prime is 24236978771. The next prime is 24236978803. The reversal of 24236978789 is 98787963242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24040502500 + 196476289 = 155050^2 + 14017^2 .

It is a cyclic number.

It is not a de Polignac number, because 24236978789 - 2³² = 19942011493 is a prime.

It is a super-2 number, since 2×24236978789² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24236978729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12118489394 + 12118489395.

It is an arithmetic number, because the mean of its divisors is an integer number (12118489395).

Almost surely, 2^24236978789 is an apocalyptic number.

It is an amenable number.

24236978789 is a deficient number, since it is larger than the sum of its proper divisors (1).

24236978789 is an equidigital number, since it uses as much as digits as its factorization.

24236978789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 65.

The spelling of 24236978789 in words is "twenty-four billion, two hundred thirty-six million, nine hundred seventy-eight thousand, seven hundred eighty-nine".