40344341969 has 2 divisors, whose sum is σ = 40344341970. Its totient is φ = 40344341968.

The previous prime is 40344341953. The next prime is 40344342019. The reversal of 40344341969 is 96914344304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39735239569 + 609102400 = 199337^2 + 24680^2 .

It is a cyclic number.

It is not a de Polignac number, because 40344341969 - 2⁴ = 40344341953 is a prime.

It is a super-2 number, since 2×40344341969² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40344341909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172170984 + 20172170985.

It is an arithmetic number, because the mean of its divisors is an integer number (20172170985).

Almost surely, 2^40344341969 is an apocalyptic number.

It is an amenable number.

40344341969 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344341969 is an equidigital number, since it uses as much as digits as its factorization.

40344341969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 40344341969 in words is "forty billion, three hundred forty-four million, three hundred forty-one thousand, nine hundred sixty-nine".