43385133457 has 2 divisors, whose sum is σ = 43385133458. Its totient is φ = 43385133456.

The previous prime is 43385133439. The next prime is 43385133461. The reversal of 43385133457 is 75433158334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32106905856 + 11278227601 = 179184^2 + 106199^2 .

It is a cyclic number.

It is not a de Polignac number, because 43385133457 - 2³¹ = 41237649809 is a prime.

It is not a weakly prime, because it can be changed into another prime (43385133437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21692566728 + 21692566729.

It is an arithmetic number, because the mean of its divisors is an integer number (21692566729).

Almost surely, 2^43385133457 is an apocalyptic number.

It is an amenable number.

43385133457 is a deficient number, since it is larger than the sum of its proper divisors (1).

43385133457 is an equidigital number, since it uses as much as digits as its factorization.

43385133457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 46.

The spelling of 43385133457 in words is "forty-three billion, three hundred eighty-five million, one hundred thirty-three thousand, four hundred fifty-seven".