43638476097743 has 2 divisors, whose sum is σ = 43638476097744. Its totient is φ = 43638476097742.

The previous prime is 43638476097653. The next prime is 43638476097793. The reversal of 43638476097743 is 34779067483634.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43638476097743 is a prime.

It is a super-2 number, since 2×43638476097743² (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 (43638476097793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21819238048871 + 21819238048872.

It is an arithmetic number, because the mean of its divisors is an integer number (21819238048872).

Almost surely, 2^{43638476097743} is an apocalyptic number.

43638476097743 is a deficient number, since it is larger than the sum of its proper divisors (1).

43638476097743 is an equidigital number, since it uses as much as digits as its factorization.

43638476097743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536288768, while the sum is 71.

The spelling of 43638476097743 in words is "forty-three trillion, six hundred thirty-eight billion, four hundred seventy-six million, ninety-seven thousand, seven hundred forty-three".