2027636549 has 2 divisors, whose sum is σ = 2027636550. Its totient is φ = 2027636548.

The previous prime is 2027636489. The next prime is 2027636617. The reversal of 2027636549 is 9456367202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1948604449 + 79032100 = 44143^2 + 8890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2027636549 is a prime.

It is a super-2 number, since 2×2027636549² = 8222619949681258802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2027636249) 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, 1013818274 + 1013818275.

It is an arithmetic number, because the mean of its divisors is an integer number (1013818275).

Almost surely, 2^2027636549 is an apocalyptic number.

It is an amenable number.

2027636549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2027636549 is an equidigital number, since it uses as much as digits as its factorization.

2027636549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 2027636549 is about 45029.2854595762. The cubic root of 2027636549 is about 1265.6978342835.

The spelling of 2027636549 in words is "two billion, twenty-seven million, six hundred thirty-six thousand, five hundred forty-nine".