40323122947897 has 2 divisors, whose sum is σ = 40323122947898. Its totient is φ = 40323122947896.

The previous prime is 40323122947867. The next prime is 40323122947927. The reversal of 40323122947897 is 79874922132304.

It is a balanced prime because it is at equal distance from previous prime (40323122947867) and next prime (40323122947927).

It can be written as a sum of positive squares in only one way, i.e., 40302931674681 + 20191273216 = 6348459^2 + 142096^2 .

It is a cyclic number.

It is not a de Polignac number, because 40323122947897 - 2⁷ = 40323122947769 is a prime.

It is not a weakly prime, because it can be changed into another prime (40323122947867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161561473948 + 20161561473949.

It is an arithmetic number, because the mean of its divisors is an integer number (20161561473949).

Almost surely, 2^{40323122947897} is an apocalyptic number.

It is an amenable number.

40323122947897 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323122947897 is an equidigital number, since it uses as much as digits as its factorization.

40323122947897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 61.

The spelling of 40323122947897 in words is "forty trillion, three hundred twenty-three billion, one hundred twenty-two million, nine hundred forty-seven thousand, eight hundred ninety-seven".