40534044289 has 2 divisors, whose sum is σ = 40534044290. Its totient is φ = 40534044288.

The previous prime is 40534044283. The next prime is 40534044361. The reversal of 40534044289 is 98244043504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40010000625 + 524043664 = 200025^2 + 22892^2 .

It is a cyclic number.

It is not a de Polignac number, because 40534044289 - 2²⁷ = 40399826561 is a prime.

It is a super-2 number, since 2×40534044289² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40534044283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20267022144 + 20267022145.

It is an arithmetic number, because the mean of its divisors is an integer number (20267022145).

Almost surely, 2^40534044289 is an apocalyptic number.

It is an amenable number.

40534044289 is a deficient number, since it is larger than the sum of its proper divisors (1).

40534044289 is an equidigital number, since it uses as much as digits as its factorization.

40534044289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 40534044289 in words is "forty billion, five hundred thirty-four million, forty-four thousand, two hundred eighty-nine".