40045340453 has 2 divisors, whose sum is σ = 40045340454. Its totient is φ = 40045340452.

The previous prime is 40045340431. The next prime is 40045340459. The reversal of 40045340453 is 35404354004.

40045340453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33665644324 + 6379696129 = 183482^2 + 79873^2 .

It is a cyclic number.

It is not a de Polignac number, because 40045340453 - 2¹⁰ = 40045339429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40045340459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20022670226 + 20022670227.

It is an arithmetic number, because the mean of its divisors is an integer number (20022670227).

Almost surely, 2^40045340453 is an apocalyptic number.

It is an amenable number.

40045340453 is a deficient number, since it is larger than the sum of its proper divisors (1).

40045340453 is an equidigital number, since it uses as much as digits as its factorization.

40045340453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 40045340453 its reverse (35404354004), we get a palindrome (75449694457).

The spelling of 40045340453 in words is "forty billion, forty-five million, three hundred forty thousand, four hundred fifty-three".