2027636489 has 2 divisors, whose sum is σ = 2027636490. Its totient is φ = 2027636488.

The previous prime is 2027636459. The next prime is 2027636549. The reversal of 2027636489 is 9846367202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1746571264 + 281065225 = 41792^2 + 16765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2027636489 is a prime.

It is a super-2 number, since 2×2027636489² = 8222619463048494242, which 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 (2027636449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013818244 + 1013818245.

It is an arithmetic number, because the mean of its divisors is an integer number (1013818245).

Almost surely, 2^2027636489 is an apocalyptic number.

It is an amenable number.

2027636489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2027636489 is an equidigital number, since it uses as much as digits as its factorization.

2027636489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 2027636489 is about 45029.2847933431. The cubic root of 2027636489 is about 1265.6978217990.

It can be divided in two parts, 20276 and 36489, that added together give a palindrome (56765).

The spelling of 2027636489 in words is "two billion, twenty-seven million, six hundred thirty-six thousand, four hundred eighty-nine".