40423042097 has 2 divisors, whose sum is σ = 40423042098. Its totient is φ = 40423042096.

The previous prime is 40423042027. The next prime is 40423042117. The reversal of 40423042097 is 79024032404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31472179216 + 8950862881 = 177404^2 + 94609^2 .

It is a cyclic number.

It is not a de Polignac number, because 40423042097 - 2¹⁰ = 40423041073 is a prime.

It is not a weakly prime, because it can be changed into another prime (40423042027) 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, 20211521048 + 20211521049.

It is an arithmetic number, because the mean of its divisors is an integer number (20211521049).

Almost surely, 2^40423042097 is an apocalyptic number.

It is an amenable number.

40423042097 is a deficient number, since it is larger than the sum of its proper divisors (1).

40423042097 is an equidigital number, since it uses as much as digits as its factorization.

40423042097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 40423042097 in words is "forty billion, four hundred twenty-three million, forty-two thousand, ninety-seven".