40745667289 has 2 divisors, whose sum is σ = 40745667290. Its totient is φ = 40745667288.

The previous prime is 40745667197. The next prime is 40745667317. The reversal of 40745667289 is 98276654704.

It is a happy number.

40745667289 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., 27260651664 + 13485015625 = 165108^2 + 116125^2 .

It is a cyclic number.

It is not a de Polignac number, because 40745667289 - 2¹¹ = 40745665241 is a prime.

It is not a weakly prime, because it can be changed into another prime (40745167289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20372833644 + 20372833645.

It is an arithmetic number, because the mean of its divisors is an integer number (20372833645).

Almost surely, 2^40745667289 is an apocalyptic number.

It is an amenable number.

40745667289 is a deficient number, since it is larger than the sum of its proper divisors (1).

40745667289 is an equidigital number, since it uses as much as digits as its factorization.

40745667289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 40745667289 in words is "forty billion, seven hundred forty-five million, six hundred sixty-seven thousand, two hundred eighty-nine".