20136610737289 has 2 divisors, whose sum is σ = 20136610737290. Its totient is φ = 20136610737288.

The previous prime is 20136610737263. The next prime is 20136610737329. The reversal of 20136610737289 is 98273701663102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10251139027600 + 9885471709689 = 3201740^2 + 3144117^2 .

It is a cyclic number.

It is not a de Polignac number, because 20136610737289 - 2⁹ = 20136610736777 is a prime.

It is not a weakly prime, because it can be changed into another prime (20136610737259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10068305368644 + 10068305368645.

It is an arithmetic number, because the mean of its divisors is an integer number (10068305368645).

Almost surely, 2^{20136610737289} is an apocalyptic number.

It is an amenable number.

20136610737289 is a deficient number, since it is larger than the sum of its proper divisors (1).

20136610737289 is an equidigital number, since it uses as much as digits as its factorization.

20136610737289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 20136610737289 in words is "twenty trillion, one hundred thirty-six billion, six hundred ten million, seven hundred thirty-seven thousand, two hundred eighty-nine".