984878878489 has 8 divisors (see below), whose sum is σ = 1074568063968. Its totient is φ = 895215483360.

The previous prime is 984878878471. The next prime is 984878878519.

984878878489 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 984878878489 - 2⁹ = 984878877977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (984878878439) 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, 6367692 + ... + 6520525.

It is an arithmetic number, because the mean of its divisors is an integer number (134321007996).

Almost surely, 2^984878878489 is an apocalyptic number.

It is an amenable number.

984878878489 is a deficient number, since it is larger than the sum of its proper divisors (89689185479).

984878878489 is a wasteful number, since it uses less digits than its factorization.

984878878489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12895175.

The product of its digits is 16647192576, while the sum is 88.

The spelling of 984878878489 in words is "nine hundred eighty-four billion, eight hundred seventy-eight million, eight hundred seventy-eight thousand, four hundred eighty-nine".