40804368349 has 2 divisors, whose sum is σ = 40804368350. Its totient is φ = 40804368348.

The previous prime is 40804368313. The next prime is 40804368383. The reversal of 40804368349 is 94386340804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40759572100 + 44796249 = 201890^2 + 6693^2 .

It is a cyclic number.

It is not a de Polignac number, because 40804368349 - 2¹⁹ = 40803844061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40804362349) 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, 20402184174 + 20402184175.

It is an arithmetic number, because the mean of its divisors is an integer number (20402184175).

Almost surely, 2^40804368349 is an apocalyptic number.

It is an amenable number.

40804368349 is a deficient number, since it is larger than the sum of its proper divisors (1).

40804368349 is an equidigital number, since it uses as much as digits as its factorization.

40804368349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 40804368349 in words is "forty billion, eight hundred four million, three hundred sixty-eight thousand, three hundred forty-nine".