42927938269 has 2 divisors, whose sum is σ = 42927938270. Its totient is φ = 42927938268.

The previous prime is 42927938227. The next prime is 42927938357. The reversal of 42927938269 is 96283972924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41548707225 + 1379231044 = 203835^2 + 37138^2 .

It is a cyclic number.

It is not a de Polignac number, because 42927938269 - 2²⁵ = 42894383837 is a prime.

It is a super-2 number, since 2×42927938269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42927938069) 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 as a sum of consecutive naturals, namely, 21463969134 + 21463969135.

It is an arithmetic number, because the mean of its divisors is an integer number (21463969135).

Almost surely, 2^42927938269 is an apocalyptic number.

It is an amenable number.

42927938269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42927938269 is an equidigital number, since it uses as much as digits as its factorization.

42927938269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 61.

The spelling of 42927938269 in words is "forty-two billion, nine hundred twenty-seven million, nine hundred thirty-eight thousand, two hundred sixty-nine".