43342381457 has 2 divisors, whose sum is σ = 43342381458. Its totient is φ = 43342381456.

The previous prime is 43342381417. The next prime is 43342381471. The reversal of 43342381457 is 75418324334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35292882496 + 8049498961 = 187864^2 + 89719^2 .

It is a cyclic number.

It is not a de Polignac number, because 43342381457 - 2¹² = 43342377361 is a prime.

It is not a weakly prime, because it can be changed into another prime (43342381417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21671190728 + 21671190729.

It is an arithmetic number, because the mean of its divisors is an integer number (21671190729).

Almost surely, 2^43342381457 is an apocalyptic number.

It is an amenable number.

43342381457 is a deficient number, since it is larger than the sum of its proper divisors (1).

43342381457 is an equidigital number, since it uses as much as digits as its factorization.

43342381457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 44.

The spelling of 43342381457 in words is "forty-three billion, three hundred forty-two million, three hundred eighty-one thousand, four hundred fifty-seven".