121759163417 has 2 divisors, whose sum is σ = 121759163418. Its totient is φ = 121759163416.

The previous prime is 121759163401. The next prime is 121759163441. The reversal of 121759163417 is 714361957121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109018172041 + 12740991376 = 330179^2 + 112876^2 .

It is a cyclic number.

It is not a de Polignac number, because 121759163417 - 2⁴ = 121759163401 is a prime.

It is a super-2 number, since 2×121759163417² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121759163917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60879581708 + 60879581709.

It is an arithmetic number, because the mean of its divisors is an integer number (60879581709).

Almost surely, 2^121759163417 is an apocalyptic number.

It is an amenable number.

121759163417 is a deficient number, since it is larger than the sum of its proper divisors (1).

121759163417 is an equidigital number, since it uses as much as digits as its factorization.

121759163417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 47.

The spelling of 121759163417 in words is "one hundred twenty-one billion, seven hundred fifty-nine million, one hundred sixty-three thousand, four hundred seventeen".