43289337493 has 2 divisors, whose sum is σ = 43289337494. Its totient is φ = 43289337492.

The previous prime is 43289337473. The next prime is 43289337499. The reversal of 43289337493 is 39473398234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22500600004 + 20788737489 = 150002^2 + 144183^2 .

It is a cyclic number.

It is not a de Polignac number, because 43289337493 - 2²¹ = 43287240341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43289337499) 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, 21644668746 + 21644668747.

It is an arithmetic number, because the mean of its divisors is an integer number (21644668747).

Almost surely, 2^43289337493 is an apocalyptic number.

It is an amenable number.

43289337493 is a deficient number, since it is larger than the sum of its proper divisors (1).

43289337493 is an equidigital number, since it uses as much as digits as its factorization.

43289337493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 55.

The spelling of 43289337493 in words is "forty-three billion, two hundred eighty-nine million, three hundred thirty-seven thousand, four hundred ninety-three".