43142424989 has 2 divisors, whose sum is σ = 43142424990. Its totient is φ = 43142424988.

The previous prime is 43142424977. The next prime is 43142425103. The reversal of 43142424989 is 98942424134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37619705764 + 5522719225 = 193958^2 + 74315^2 .

It is a cyclic number.

It is not a de Polignac number, because 43142424989 - 2⁴ = 43142424973 is a prime.

It is a super-2 number, since 2×43142424989² (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 (43142424889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21571212494 + 21571212495.

It is an arithmetic number, because the mean of its divisors is an integer number (21571212495).

Almost surely, 2^43142424989 is an apocalyptic number.

It is an amenable number.

43142424989 is a deficient number, since it is larger than the sum of its proper divisors (1).

43142424989 is an equidigital number, since it uses as much as digits as its factorization.

43142424989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 50.

The spelling of 43142424989 in words is "forty-three billion, one hundred forty-two million, four hundred twenty-four thousand, nine hundred eighty-nine".