40540105422413 has 2 divisors, whose sum is σ = 40540105422414. Its totient is φ = 40540105422412.

The previous prime is 40540105422371. The next prime is 40540105422469. The reversal of 40540105422413 is 31422450104504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24084410162569 + 16455695259844 = 4907587^2 + 4056562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40540105422413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40540105422473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20270052711206 + 20270052711207.

It is an arithmetic number, because the mean of its divisors is an integer number (20270052711207).

Almost surely, 2^{40540105422413} is an apocalyptic number.

It is an amenable number.

40540105422413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40540105422413 is an equidigital number, since it uses as much as digits as its factorization.

40540105422413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 40540105422413 its reverse (31422450104504), we get a palindrome (71962555526917).

The spelling of 40540105422413 in words is "forty trillion, five hundred forty billion, one hundred five million, four hundred twenty-two thousand, four hundred thirteen".