40936621441 has 2 divisors, whose sum is σ = 40936621442. Its totient is φ = 40936621440.

The previous prime is 40936621387. The next prime is 40936621447. The reversal of 40936621441 is 14412663904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29077411441 + 11859210000 = 170521^2 + 108900^2 .

It is a cyclic number.

It is not a de Polignac number, because 40936621441 - 2¹¹ = 40936619393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40936621394 and 40936621403.

It is not a weakly prime, because it can be changed into another prime (40936621447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20468310720 + 20468310721.

It is an arithmetic number, because the mean of its divisors is an integer number (20468310721).

Almost surely, 2^40936621441 is an apocalyptic number.

It is an amenable number.

40936621441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40936621441 is an equidigital number, since it uses as much as digits as its factorization.

40936621441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 40936621441 in words is "forty billion, nine hundred thirty-six million, six hundred twenty-one thousand, four hundred forty-one".