40337406689 has 2 divisors, whose sum is σ = 40337406690. Its totient is φ = 40337406688.

The previous prime is 40337406679. The next prime is 40337406709. The reversal of 40337406689 is 98660473304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39928032400 + 409374289 = 199820^2 + 20233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40337406689 is a prime.

It is not a weakly prime, because it can be changed into another prime (40337406679) 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, 20168703344 + 20168703345.

It is an arithmetic number, because the mean of its divisors is an integer number (20168703345).

Almost surely, 2^40337406689 is an apocalyptic number.

It is an amenable number.

40337406689 is a deficient number, since it is larger than the sum of its proper divisors (1).

40337406689 is an equidigital number, since it uses as much as digits as its factorization.

40337406689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 40337406689 in words is "forty billion, three hundred thirty-seven million, four hundred six thousand, six hundred eighty-nine".