40289594797 has 2 divisors, whose sum is σ = 40289594798. Its totient is φ = 40289594796.

The previous prime is 40289594731. The next prime is 40289594837. The reversal of 40289594797 is 79749598204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34781877001 + 5507717796 = 186499^2 + 74214^2 .

It is a cyclic number.

It is not a de Polignac number, because 40289594797 - 2¹⁹ = 40289070509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40289564797) 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, 20144797398 + 20144797399.

It is an arithmetic number, because the mean of its divisors is an integer number (20144797399).

Almost surely, 2^40289594797 is an apocalyptic number.

It is an amenable number.

40289594797 is a deficient number, since it is larger than the sum of its proper divisors (1).

40289594797 is an equidigital number, since it uses as much as digits as its factorization.

40289594797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 40289594797 in words is "forty billion, two hundred eighty-nine million, five hundred ninety-four thousand, seven hundred ninety-seven".