40342223497 has 2 divisors, whose sum is σ = 40342223498. Its totient is φ = 40342223496.

The previous prime is 40342223417. The next prime is 40342223531. The reversal of 40342223497 is 79432224304.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35360545936 + 4981677561 = 188044^2 + 70581^2 .

It is a cyclic number.

It is not a de Polignac number, because 40342223497 - 2²⁷ = 40208005769 is a prime.

It is not a weakly prime, because it can be changed into another prime (40342223417) 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, 20171111748 + 20171111749.

It is an arithmetic number, because the mean of its divisors is an integer number (20171111749).

Almost surely, 2^40342223497 is an apocalyptic number.

It is an amenable number.

40342223497 is a deficient number, since it is larger than the sum of its proper divisors (1).

40342223497 is an equidigital number, since it uses as much as digits as its factorization.

40342223497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 40342223497 in words is "forty billion, three hundred forty-two million, two hundred twenty-three thousand, four hundred ninety-seven".