12197057465869 has 2 divisors, whose sum is σ = 12197057465870. Its totient is φ = 12197057465868.

The previous prime is 12197057465867. The next prime is 12197057465903. The reversal of 12197057465869 is 96856475079121.

12197057465869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7721979534025 + 4475077931844 = 2778845^2 + 2115438^2 .

It is a cyclic number.

It is not a de Polignac number, because 12197057465869 - 2¹ = 12197057465867 is a prime.

It is a super-2 number, since 2×12197057465869² (a number of 27 digits) contains 22 as substring.

Together with 12197057465867, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12197057465798 and 12197057465807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12197057465861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098528732934 + 6098528732935.

It is an arithmetic number, because the mean of its divisors is an integer number (6098528732935).

Almost surely, 2^{12197057465869} is an apocalyptic number.

It is an amenable number.

12197057465869 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197057465869 is an equidigital number, since it uses as much as digits as its factorization.

12197057465869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 228614400, while the sum is 70.

The spelling of 12197057465869 in words is "twelve trillion, one hundred ninety-seven billion, fifty-seven million, four hundred sixty-five thousand, eight hundred sixty-nine".