10689361919 has 4 divisors (see below), whose sum is σ = 10818149496. Its totient is φ = 10560574344.

The previous prime is 10689361909. The next prime is 10689361927. The reversal of 10689361919 is 91916398601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10689361919 - 2²⁰ = 10688313343 is a prime.

It is a super-2 number, since 2×10689361919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10689361909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64393664 + ... + 64393829.

It is an arithmetic number, because the mean of its divisors is an integer number (2704537374).

Almost surely, 2^10689361919 is an apocalyptic number.

10689361919 is a deficient number, since it is larger than the sum of its proper divisors (128787577).

10689361919 is an equidigital number, since it uses as much as digits as its factorization.

10689361919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128787576.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 10689361919 in words is "ten billion, six hundred eighty-nine million, three hundred sixty-one thousand, nine hundred nineteen".