87278078387017 has 8 divisors (see below), whose sum is σ = 105613809140736. Its totient is φ = 70409206093632.

The previous prime is 87278078387009. The next prime is 87278078387183. The reversal of 87278078387017 is 71078387087278.

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

It is not a de Polignac number, because 87278078387017 - 2³ = 87278078387009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87278078187017) 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, 366714614953 + ... + 366714615190.

It is an arithmetic number, because the mean of its divisors is an integer number (13201726142592).

Almost surely, 2^{87278078387017} is an apocalyptic number.

It is an amenable number.

87278078387017 is a deficient number, since it is larger than the sum of its proper divisors (18335730753719).

87278078387017 is a wasteful number, since it uses less digits than its factorization.

87278078387017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733429230167.

The product of its (nonzero) digits is 413048832, while the sum is 73.

The spelling of 87278078387017 in words is "eighty-seven trillion, two hundred seventy-eight billion, seventy-eight million, three hundred eighty-seven thousand, seventeen".