40652811449 has 2 divisors, whose sum is σ = 40652811450. Its totient is φ = 40652811448.

The previous prime is 40652811401. The next prime is 40652811481. The reversal of 40652811449 is 94411825604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34291632400 + 6361179049 = 185180^2 + 79757^2 .

It is a cyclic number.

It is not a de Polignac number, because 40652811449 - 2³² = 36357844153 is a prime.

It is not a weakly prime, because it can be changed into another prime (40652811499) 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, 20326405724 + 20326405725.

It is an arithmetic number, because the mean of its divisors is an integer number (20326405725).

Almost surely, 2^40652811449 is an apocalyptic number.

It is an amenable number.

40652811449 is a deficient number, since it is larger than the sum of its proper divisors (1).

40652811449 is an equidigital number, since it uses as much as digits as its factorization.

40652811449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 40652811449 in words is "forty billion, six hundred fifty-two million, eight hundred eleven thousand, four hundred forty-nine".