797336121633791 has 2 divisors, whose sum is σ = 797336121633792. Its totient is φ = 797336121633790.

The previous prime is 797336121633761. The next prime is 797336121633827. The reversal of 797336121633791 is 197336121633797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 797336121633791 - 2⁴⁶ = 726967377456127 is a prime.

It is a super-2 number, since 2×797336121633791² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797336121633761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398668060816895 + 398668060816896.

It is an arithmetic number, because the mean of its divisors is an integer number (398668060816896).

Almost surely, 2^{797336121633791} is an apocalyptic number.

797336121633791 is a deficient number, since it is larger than the sum of its proper divisors (1).

797336121633791 is an equidigital number, since it uses as much as digits as its factorization.

797336121633791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162030456, while the sum is 68.

The spelling of 797336121633791 in words is "seven hundred ninety-seven trillion, three hundred thirty-six billion, one hundred twenty-one million, six hundred thirty-three thousand, seven hundred ninety-one".