24628617989 has 2 divisors, whose sum is σ = 24628617990. Its totient is φ = 24628617988.

The previous prime is 24628617983. The next prime is 24628617991. The reversal of 24628617989 is 98971682642.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12870902500 + 11757715489 = 113450^2 + 108433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24628617989 is a prime.

Together with 24628617991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24628617983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12314308994 + 12314308995.

It is an arithmetic number, because the mean of its divisors is an integer number (12314308995).

Almost surely, 2^24628617989 is an apocalyptic number.

It is an amenable number.

24628617989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24628617989 is an equidigital number, since it uses as much as digits as its factorization.

24628617989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 62.

The spelling of 24628617989 in words is "twenty-four billion, six hundred twenty-eight million, six hundred seventeen thousand, nine hundred eighty-nine".