987011309885 has 8 divisors (see below), whose sum is σ = 1185047977056. Its totient is φ = 789186111120.

The previous prime is 987011309873. The next prime is 987011309887. The reversal of 987011309885 is 588903110789.

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

It is not a de Polignac number, because 987011309885 - 2¹⁸ = 987011047741 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 (987011309887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52856831 + ... + 52875500.

It is an arithmetic number, because the mean of its divisors is an integer number (148130997132).

Almost surely, 2^987011309885 is an apocalyptic number.

It is an amenable number.

987011309885 is a deficient number, since it is larger than the sum of its proper divisors (198036667171).

987011309885 is a wasteful number, since it uses less digits than its factorization.

987011309885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105734203.

The product of its (nonzero) digits is 4354560, while the sum is 59.

The spelling of 987011309885 in words is "nine hundred eighty-seven billion, eleven million, three hundred nine thousand, eight hundred eighty-five".