987964469789 has 16 divisors (see below), whose sum is σ = 1108646167104. Its totient is φ = 872782022400.

The previous prime is 987964469771. The next prime is 987964469819.

987964469789 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 987964469789 - 2⁸ = 987964469533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 987964469789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987964463789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8814044 + ... + 8925429.

It is an arithmetic number, because the mean of its divisors is an integer number (69290385444).

Almost surely, 2^987964469789 is an apocalyptic number.

It is an amenable number.

987964469789 is a deficient number, since it is larger than the sum of its proper divisors (120681697315).

987964469789 is a wasteful number, since it uses less digits than its factorization.

987964469789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17739628.

The product of its digits is 11851370496, while the sum is 86.

The spelling of 987964469789 in words is "nine hundred eighty-seven billion, nine hundred sixty-four million, four hundred sixty-nine thousand, seven hundred eighty-nine".