987313313789 has 8 divisors (see below), whose sum is σ = 1078809091680. Its totient is φ = 896107539600.

The previous prime is 987313313741. The next prime is 987313313839.

987313313789 is nontrivially palindromic in base 10.

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 987313313789 - 2¹² = 987313309693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987313313719) 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, 72493802 + ... + 72507419.

It is an arithmetic number, because the mean of its divisors is an integer number (134851136460).

Almost surely, 2^987313313789 is an apocalyptic number.

It is an amenable number.

987313313789 is a deficient number, since it is larger than the sum of its proper divisors (91495777891).

987313313789 is a wasteful number, since it uses less digits than its factorization.

987313313789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145001851.

The product of its digits is 20575296, while the sum is 62.

The spelling of 987313313789 in words is "nine hundred eighty-seven billion, three hundred thirteen million, three hundred thirteen thousand, seven hundred eighty-nine".