989886408969 has 8 divisors (see below), whose sum is σ = 1321780976352. Its totient is φ = 658958057120.

The previous prime is 989886408941. The next prime is 989886409003. The reversal of 989886408969 is 969804688989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 989886408969 - 2¹⁵ = 989886376201 is a prime.

It is a super-2 number, since 2×989886408969² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989886408891 and 989886408900.

It is not an unprimeable number, because it can be changed into a prime (989886408769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241551492 + ... + 241555589.

It is an arithmetic number, because the mean of its divisors is an integer number (165222622044).

Almost surely, 2^989886408969 is an apocalyptic number.

It is an amenable number.

989886408969 is a deficient number, since it is larger than the sum of its proper divisors (331894567383).

989886408969 is a wasteful number, since it uses less digits than its factorization.

989886408969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483107767.

The product of its (nonzero) digits is 3869835264, while the sum is 84.

The spelling of 989886408969 in words is "nine hundred eighty-nine billion, eight hundred eighty-six million, four hundred eight thousand, nine hundred sixty-nine".