42650550269 has 2 divisors, whose sum is σ = 42650550270. Its totient is φ = 42650550268.

The previous prime is 42650550253. The next prime is 42650550281. The reversal of 42650550269 is 96205505624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42259024900 + 391525369 = 205570^2 + 19787^2 .

It is a cyclic number.

It is not a de Polignac number, because 42650550269 - 2⁴ = 42650550253 is a prime.

It is a super-2 number, since 2×42650550269² (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 (42650510269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21325275134 + 21325275135.

It is an arithmetic number, because the mean of its divisors is an integer number (21325275135).

Almost surely, 2^42650550269 is an apocalyptic number.

It is an amenable number.

42650550269 is a deficient number, since it is larger than the sum of its proper divisors (1).

42650550269 is an equidigital number, since it uses as much as digits as its factorization.

42650550269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 42650550269 in words is "forty-two billion, six hundred fifty million, five hundred fifty thousand, two hundred sixty-nine".