78755345589 has 8 divisors (see below), whose sum is σ = 108394454272. Its totient is φ = 50809900320.

The previous prime is 78755345531. The next prime is 78755345677. The reversal of 78755345589 is 98554355787.

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

It is not a de Polignac number, because 78755345589 - 2²¹ = 78753248437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78755345689) 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 7 ways as a sum of consecutive naturals, for example, 423415744 + ... + 423415929.

It is an arithmetic number, because the mean of its divisors is an integer number (13549306784).

Almost surely, 2^78755345589 is an apocalyptic number.

It is an amenable number.

78755345589 is a deficient number, since it is larger than the sum of its proper divisors (29639108683).

78755345589 is a wasteful number, since it uses less digits than its factorization.

78755345589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846831707.

The product of its digits is 211680000, while the sum is 66.

The spelling of 78755345589 in words is "seventy-eight billion, seven hundred fifty-five million, three hundred forty-five thousand, five hundred eighty-nine".