43143522869 has 2 divisors, whose sum is σ = 43143522870. Its totient is φ = 43143522868.

The previous prime is 43143522853. The next prime is 43143522871. The reversal of 43143522869 is 96822534134.

43143522869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25150788100 + 17992734769 = 158590^2 + 134137^2 .

It is a cyclic number.

It is not a de Polignac number, because 43143522869 - 2⁴ = 43143522853 is a prime.

It is a super-2 number, since 2×43143522869² (a number of 22 digits) contains 22 as substring.

Together with 43143522871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43143522269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21571761434 + 21571761435.

It is an arithmetic number, because the mean of its divisors is an integer number (21571761435).

Almost surely, 2^43143522869 is an apocalyptic number.

It is an amenable number.

43143522869 is a deficient number, since it is larger than the sum of its proper divisors (1).

43143522869 is an equidigital number, since it uses as much as digits as its factorization.

43143522869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 47.

The spelling of 43143522869 in words is "forty-three billion, one hundred forty-three million, five hundred twenty-two thousand, eight hundred sixty-nine".