43933809133 has 2 divisors, whose sum is σ = 43933809134. Its totient is φ = 43933809132.

The previous prime is 43933809097. The next prime is 43933809149. The reversal of 43933809133 is 33190833934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36046060164 + 7887748969 = 189858^2 + 88813^2 .

It is a cyclic number.

It is not a de Polignac number, because 43933809133 - 2²¹ = 43931711981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43933809533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21966904566 + 21966904567.

It is an arithmetic number, because the mean of its divisors is an integer number (21966904567).

Almost surely, 2^43933809133 is an apocalyptic number.

It is an amenable number.

43933809133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43933809133 is an equidigital number, since it uses as much as digits as its factorization.

43933809133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 43933809133 in words is "forty-three billion, nine hundred thirty-three million, eight hundred nine thousand, one hundred thirty-three".