20127272258849 has 128 divisors (see below), whose sum is σ = 26214653583360. Its totient is φ = 15048493092864.

The previous prime is 20127272258833. The next prime is 20127272258903. The reversal of 20127272258849 is 94885227272102.

It is not a de Polignac number, because 20127272258849 - 2⁴ = 20127272258833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20127272254849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12603175319 + ... + 12603176915.

It is an arithmetic number, because the mean of its divisors is an integer number (204801981120).

Almost surely, 2^{20127272258849} is an apocalyptic number.

It is an amenable number.

20127272258849 is a deficient number, since it is larger than the sum of its proper divisors (6087381324511).

20127272258849 is a wasteful number, since it uses less digits than its factorization.

20127272258849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 20127272258849 in words is "twenty trillion, one hundred twenty-seven billion, two hundred seventy-two million, two hundred fifty-eight thousand, eight hundred forty-nine".