78887827590609 has 8 divisors (see below), whose sum is σ = 105526388265760. Its totient is φ = 52420575987936.

The previous prime is 78887827590589. The next prime is 78887827590613. The reversal of 78887827590609 is 90609572878887.

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

It is not a de Polignac number, because 78887827590609 - 2¹⁵ = 78887827557841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78887827090609) 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, 42827267044 + ... + 42827268885.

It is an arithmetic number, because the mean of its divisors is an integer number (13190798533220).

Almost surely, 2^{78887827590609} is an apocalyptic number.

It is an amenable number.

78887827590609 is a deficient number, since it is larger than the sum of its proper divisors (26638560675151).

78887827590609 is a wasteful number, since it uses less digits than its factorization.

78887827590609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85654536239.

The product of its (nonzero) digits is 6827950080, while the sum is 84.

The spelling of 78887827590609 in words is "seventy-eight trillion, eight hundred eighty-seven billion, eight hundred twenty-seven million, five hundred ninety thousand, six hundred nine".