987181237347 has 4 divisors (see below), whose sum is σ = 1316241649800. Its totient is φ = 658120824896.

The previous prime is 987181237337. The next prime is 987181237369. The reversal of 987181237347 is 743732181789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 987181237347 - 2⁶ = 987181237283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987181237327) 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 3 ways as a sum of consecutive naturals, for example, 164530206222 + ... + 164530206227.

It is an arithmetic number, because the mean of its divisors is an integer number (329060412450).

Almost surely, 2^987181237347 is an apocalyptic number.

987181237347 is a deficient number, since it is larger than the sum of its proper divisors (329060412453).

987181237347 is a wasteful number, since it uses less digits than its factorization.

987181237347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329060412452.

The product of its digits is 14224896, while the sum is 60.

The spelling of 987181237347 in words is "nine hundred eighty-seven billion, one hundred eighty-one million, two hundred thirty-seven thousand, three hundred forty-seven".