40045335469 has 2 divisors, whose sum is σ = 40045335470. Its totient is φ = 40045335468.

The previous prime is 40045335383. The next prime is 40045335481. The reversal of 40045335469 is 96453354004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40028004900 + 17330569 = 200070^2 + 4163^2 .

It is a cyclic number.

It is not a de Polignac number, because 40045335469 - 2¹³ = 40045327277 is a prime.

It is a super-2 number, since 2×40045335469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40045332469) 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, 20022667734 + 20022667735.

It is an arithmetic number, because the mean of its divisors is an integer number (20022667735).

Almost surely, 2^40045335469 is an apocalyptic number.

It is an amenable number.

40045335469 is a deficient number, since it is larger than the sum of its proper divisors (1).

40045335469 is an equidigital number, since it uses as much as digits as its factorization.

40045335469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 40045335469 in words is "forty billion, forty-five million, three hundred thirty-five thousand, four hundred sixty-nine".