43268404371943 has 2 divisors, whose sum is σ = 43268404371944. Its totient is φ = 43268404371942.

The previous prime is 43268404371917. The next prime is 43268404371967. The reversal of 43268404371943 is 34917340486234.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43268404371943 is a prime.

It is a super-2 number, since 2×43268404371943² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43268404371443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21634202185971 + 21634202185972.

It is an arithmetic number, because the mean of its divisors is an integer number (21634202185972).

Almost surely, 2^{43268404371943} is an apocalyptic number.

43268404371943 is a deficient number, since it is larger than the sum of its proper divisors (1).

43268404371943 is an equidigital number, since it uses as much as digits as its factorization.

43268404371943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41803776, while the sum is 58.

The spelling of 43268404371943 in words is "forty-three trillion, two hundred sixty-eight billion, four hundred four million, three hundred seventy-one thousand, nine hundred forty-three".