43357687423 has 2 divisors, whose sum is σ = 43357687424. Its totient is φ = 43357687422.

The previous prime is 43357687381. The next prime is 43357687447. The reversal of 43357687423 is 32478675334.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43357687423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43357687463) 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, 21678843711 + 21678843712.

It is an arithmetic number, because the mean of its divisors is an integer number (21678843712).

Almost surely, 2^43357687423 is an apocalyptic number.

43357687423 is a deficient number, since it is larger than the sum of its proper divisors (1).

43357687423 is an equidigital number, since it uses as much as digits as its factorization.

43357687423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 52.

The spelling of 43357687423 in words is "forty-three billion, three hundred fifty-seven million, six hundred eighty-seven thousand, four hundred twenty-three".