797255097181 has 2 divisors, whose sum is σ = 797255097182. Its totient is φ = 797255097180.

The previous prime is 797255097137. The next prime is 797255097311. The reversal of 797255097181 is 181790552797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426234013956 + 371021083225 = 652866^2 + 609115^2 .

It is a cyclic number.

It is not a de Polignac number, because 797255097181 - 2³⁷ = 659816143709 is a prime.

It is a super-2 number, since 2×797255097181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797255091181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398627548590 + 398627548591.

It is an arithmetic number, because the mean of its divisors is an integer number (398627548591).

Almost surely, 2^797255097181 is an apocalyptic number.

It is an amenable number.

797255097181 is a deficient number, since it is larger than the sum of its proper divisors (1).

797255097181 is an equidigital number, since it uses as much as digits as its factorization.

797255097181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11113200, while the sum is 61.

The spelling of 797255097181 in words is "seven hundred ninety-seven billion, two hundred fifty-five million, ninety-seven thousand, one hundred eighty-one".