9689990999869 has 16 divisors (see below), whose sum is σ = 9950790320640. Its totient is φ = 9432426976560.

The previous prime is 9689990999827. The next prime is 9689990999929.

9689990999869 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 9689990999869 - 2²⁷ = 9689856782141 is a prime.

It is a super-2 number, since 2×9689990999869² (a number of 27 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 (9689990999069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74238274 + ... + 74368684.

It is an arithmetic number, because the mean of its divisors is an integer number (621924395040).

Almost surely, 2^{9689990999869} is an apocalyptic number.

It is an amenable number.

9689990999869 is a deficient number, since it is larger than the sum of its proper divisors (260799320771).

9689990999869 is a wasteful number, since it uses less digits than its factorization.

9689990999869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142800.

The product of its (nonzero) digits is 99179645184, while the sum is 100.

The spelling of 9689990999869 in words is "nine trillion, six hundred eighty-nine billion, nine hundred ninety million, nine hundred ninety-nine thousand, eight hundred sixty-nine".