9879488849789 has 16 divisors (see below), whose sum is σ = 10780160280960. Its totient is φ = 8999704687680.

The previous prime is 9879488849767. The next prime is 9879488849801.

9879488849789 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 9879488849789 - 2²⁸ = 9879220414333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9879488849695 and 9879488849704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9879488849389) 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, 16067522 + ... + 16671059.

It is an arithmetic number, because the mean of its divisors is an integer number (673760017560).

Almost surely, 2^{9879488849789} is an apocalyptic number.

It is an amenable number.

9879488849789 is a deficient number, since it is larger than the sum of its proper divisors (900671431171).

9879488849789 is a wasteful number, since it uses less digits than its factorization.

9879488849789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32738900.

The product of its digits is 168552824832, while the sum is 98.

The spelling of 9879488849789 in words is "nine trillion, eight hundred seventy-nine billion, four hundred eighty-eight million, eight hundred forty-nine thousand, seven hundred eighty-nine".