2127874709 has 2 divisors, whose sum is σ = 2127874710. Its totient is φ = 2127874708.

The previous prime is 2127874673. The next prime is 2127874711. The reversal of 2127874709 is 9074787212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1998984100 + 128890609 = 44710^2 + 11353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2127874709 is a prime.

It is a super-3 number, since 3×2127874709³ (a number of 29 digits) contains 333 as substring.

Together with 2127874711, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2127874729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063937354 + 1063937355.

It is an arithmetic number, because the mean of its divisors is an integer number (1063937355).

Almost surely, 2^2127874709 is an apocalyptic number.

It is an amenable number.

2127874709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127874709 is an equidigital number, since it uses as much as digits as its factorization.

2127874709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 2127874709 is about 46128.8923452536. The cubic root of 2127874709 is about 1286.2202742048.

The spelling of 2127874709 in words is "two billion, one hundred twenty-seven million, eight hundred seventy-four thousand, seven hundred nine".