797591364389 has 2 divisors, whose sum is σ = 797591364390. Its totient is φ = 797591364388.

The previous prime is 797591364341. The next prime is 797591364443. The reversal of 797591364389 is 983463195797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674972335489 + 122619028900 = 821567^2 + 350170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797591364389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797591363389) 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, 398795682194 + 398795682195.

It is an arithmetic number, because the mean of its divisors is an integer number (398795682195).

Almost surely, 2^797591364389 is an apocalyptic number.

It is an amenable number.

797591364389 is a deficient number, since it is larger than the sum of its proper divisors (1).

797591364389 is an equidigital number, since it uses as much as digits as its factorization.

797591364389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 308629440, while the sum is 71.

The spelling of 797591364389 in words is "seven hundred ninety-seven billion, five hundred ninety-one million, three hundred sixty-four thousand, three hundred eighty-nine".