20375626289 has 2 divisors, whose sum is σ = 20375626290. Its totient is φ = 20375626288.

The previous prime is 20375626283. The next prime is 20375626357. The reversal of 20375626289 is 98262657302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20303970064 + 71656225 = 142492^2 + 8465^2 .

It is a cyclic number.

It is not a de Polignac number, because 20375626289 - 2⁴ = 20375626273 is a prime.

It is a super-2 number, since 2×20375626289² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20375626283) 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, 10187813144 + 10187813145.

It is an arithmetic number, because the mean of its divisors is an integer number (10187813145).

Almost surely, 2^20375626289 is an apocalyptic number.

It is an amenable number.

20375626289 is a deficient number, since it is larger than the sum of its proper divisors (1).

20375626289 is an equidigital number, since it uses as much as digits as its factorization.

20375626289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 20375626289 in words is "twenty billion, three hundred seventy-five million, six hundred twenty-six thousand, two hundred eighty-nine".