78841606659 has 8 divisors (see below), whose sum is σ = 106452802560. Its totient is φ = 51895740936.

The previous prime is 78841606633. The next prime is 78841606663. The reversal of 78841606659 is 95660614887.

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

It is not a de Polignac number, because 78841606659 - 2¹³ = 78841598467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78841606609) 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, 166332267 + ... + 166332740.

It is an arithmetic number, because the mean of its divisors is an integer number (13306600320).

Almost surely, 2^78841606659 is an apocalyptic number.

78841606659 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

78841606659 is a deficient number, since it is larger than the sum of its proper divisors (27611195901).

78841606659 is a wasteful number, since it uses less digits than its factorization.

78841606659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332665089.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 78841606659 in words is "seventy-eight billion, eight hundred forty-one million, six hundred six thousand, six hundred fifty-nine".