14615979396121 has 2 divisors, whose sum is σ = 14615979396122. Its totient is φ = 14615979396120.

The previous prime is 14615979396107. The next prime is 14615979396301. The reversal of 14615979396121 is 12169397951641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14272830643600 + 343148752521 = 3777940^2 + 585789^2 .

It is a cyclic number.

It is not a de Polignac number, because 14615979396121 - 2²⁵ = 14615945841689 is a prime.

It is not a weakly prime, because it can be changed into another prime (14615979396721) 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, 7307989698060 + 7307989698061.

It is an arithmetic number, because the mean of its divisors is an integer number (7307989698061).

Almost surely, 2^{14615979396121} is an apocalyptic number.

It is an amenable number.

14615979396121 is a deficient number, since it is larger than the sum of its proper divisors (1).

14615979396121 is an equidigital number, since it uses as much as digits as its factorization.

14615979396121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22044960, while the sum is 64.

The spelling of 14615979396121 in words is "fourteen trillion, six hundred fifteen billion, nine hundred seventy-nine million, three hundred ninety-six thousand, one hundred twenty-one".