9689374081687 has 2 divisors, whose sum is σ = 9689374081688. Its totient is φ = 9689374081686.

The previous prime is 9689374081663. The next prime is 9689374081693. The reversal of 9689374081687 is 7861804739869.

It is a strong prime.

It is an emirp because it is prime and its reverse (7861804739869) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9689374081687 - 2¹⁵ = 9689374048919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9689374081087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4844687040843 + 4844687040844.

It is an arithmetic number, because the mean of its divisors is an integer number (4844687040844).

Almost surely, 2^{9689374081687} is an apocalyptic number.

9689374081687 is a deficient number, since it is larger than the sum of its proper divisors (1).

9689374081687 is an equidigital number, since it uses as much as digits as its factorization.

9689374081687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 877879296, while the sum is 76.

The spelling of 9689374081687 in words is "nine trillion, six hundred eighty-nine billion, three hundred seventy-four million, eighty-one thousand, six hundred eighty-seven".