987445202544789 has 8 divisors (see below), whose sum is σ = 1373836803540672. Its totient is φ = 629675201622720.

The previous prime is 987445202544763. The next prime is 987445202544863.

987445202544789 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 987445202544789 - 2²⁰ = 987445201496213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987445202544709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7155400018372 + ... + 7155400018509.

It is an arithmetic number, because the mean of its divisors is an integer number (171729600442584).

Almost surely, 2^{987445202544789} is an apocalyptic number.

It is an amenable number.

987445202544789 is a deficient number, since it is larger than the sum of its proper divisors (386391600995883).

987445202544789 is a wasteful number, since it uses less digits than its factorization.

987445202544789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14310800036907.

The product of its (nonzero) digits is 6502809600, while the sum is 78.

The spelling of 987445202544789 in words is "nine hundred eighty-seven trillion, four hundred forty-five billion, two hundred two million, five hundred forty-four thousand, seven hundred eighty-nine".