43428082457 has 2 divisors, whose sum is σ = 43428082458. Its totient is φ = 43428082456.

The previous prime is 43428082427. The next prime is 43428082459. The reversal of 43428082457 is 75428082434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43159647001 + 268435456 = 207749^2 + 16384^2 .

It is a cyclic number.

It is not a de Polignac number, because 43428082457 - 2¹² = 43428078361 is a prime.

Together with 43428082459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43428082459) 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, 21714041228 + 21714041229.

It is an arithmetic number, because the mean of its divisors is an integer number (21714041229).

Almost surely, 2^43428082457 is an apocalyptic number.

It is an amenable number.

43428082457 is a deficient number, since it is larger than the sum of its proper divisors (1).

43428082457 is an equidigital number, since it uses as much as digits as its factorization.

43428082457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1720320, while the sum is 47.

The spelling of 43428082457 in words is "forty-three billion, four hundred twenty-eight million, eighty-two thousand, four hundred fifty-seven".