12689335605371 has 2 divisors, whose sum is σ = 12689335605372. Its totient is φ = 12689335605370.

The previous prime is 12689335605337. The next prime is 12689335605389. The reversal of 12689335605371 is 17350653398621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12689335605371 - 2¹⁴ = 12689335588987 is a prime.

It is a super-2 number, since 2×12689335605371² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12689335605371.

It is not a weakly prime, because it can be changed into another prime (12689335605971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6344667802685 + 6344667802686.

It is an arithmetic number, because the mean of its divisors is an integer number (6344667802686).

Almost surely, 2^{12689335605371} is an apocalyptic number.

12689335605371 is a deficient number, since it is larger than the sum of its proper divisors (1).

12689335605371 is an equidigital number, since it uses as much as digits as its factorization.

12689335605371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 12689335605371 in words is "twelve trillion, six hundred eighty-nine billion, three hundred thirty-five million, six hundred five thousand, three hundred seventy-one".