78790418089 has 8 divisors (see below), whose sum is σ = 78911189280. Its totient is φ = 78669696000.

The previous prime is 78790418087. The next prime is 78790418099. The reversal of 78790418089 is 98081409787.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 78790418089 - 2¹ = 78790418087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78790418087) 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, 4336554 + ... + 4354684.

It is an arithmetic number, because the mean of its divisors is an integer number (9863898660).

Almost surely, 2^78790418089 is an apocalyptic number.

It is an amenable number.

78790418089 is a deficient number, since it is larger than the sum of its proper divisors (120771191).

78790418089 is a wasteful number, since it uses less digits than its factorization.

78790418089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24551.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 78790418089 in words is "seventy-eight billion, seven hundred ninety million, four hundred eighteen thousand, eighty-nine".