2127690269 has 2 divisors, whose sum is σ = 2127690270. Its totient is φ = 2127690268.

The previous prime is 2127690259. The next prime is 2127690283. The reversal of 2127690269 is 9620967212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1904187769 + 223502500 = 43637^2 + 14950^2 .

It is a cyclic number.

It is not a de Polignac number, because 2127690269 - 2⁸ = 2127690013 is a prime.

It is a super-2 number, since 2×2127690269² = 9054131761594584722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2127690259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063845134 + 1063845135.

It is an arithmetic number, because the mean of its divisors is an integer number (1063845135).

Almost surely, 2^2127690269 is an apocalyptic number.

It is an amenable number.

2127690269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127690269 is an equidigital number, since it uses as much as digits as its factorization.

2127690269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 2127690269 is about 46126.8931210417. The cubic root of 2127690269 is about 1286.1831107821.

The spelling of 2127690269 in words is "two billion, one hundred twenty-seven million, six hundred ninety thousand, two hundred sixty-nine".