797653059857 has 2 divisors, whose sum is σ = 797653059858. Its totient is φ = 797653059856.

The previous prime is 797653059811. The next prime is 797653059871. The reversal of 797653059857 is 758950356797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708827602561 + 88825457296 = 841919^2 + 298036^2 .

It is a cyclic number.

It is not a de Polignac number, because 797653059857 - 2⁶ = 797653059793 is a prime.

It is not a weakly prime, because it can be changed into another prime (797653058857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398826529928 + 398826529929.

It is an arithmetic number, because the mean of its divisors is an integer number (398826529929).

Almost surely, 2^797653059857 is an apocalyptic number.

It is an amenable number.

797653059857 is a deficient number, since it is larger than the sum of its proper divisors (1).

797653059857 is an equidigital number, since it uses as much as digits as its factorization.

797653059857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 500094000, while the sum is 71.

The spelling of 797653059857 in words is "seven hundred ninety-seven billion, six hundred fifty-three million, fifty-nine thousand, eight hundred fifty-seven".