8557789855 has 8 divisors (see below), whose sum is σ = 10337357664. Its totient is φ = 6800892000.

The previous prime is 8557789853. The next prime is 8557789871. The reversal of 8557789855 is 5589877558.

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

It is not a de Polignac number, because 8557789855 - 2¹ = 8557789853 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 (8557789853) 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, 5666656 + ... + 5668165.

It is an arithmetic number, because the mean of its divisors is an integer number (1292169708).

Almost surely, 2^8557789855 is an apocalyptic number.

8557789855 is a deficient number, since it is larger than the sum of its proper divisors (1779567809).

8557789855 is a wasteful number, since it uses less digits than its factorization.

8557789855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334977.

The product of its digits is 141120000, while the sum is 67.

The square root of 8557789855 is about 92508.3231660806. The cubic root of 8557789855 is about 2045.4421725854.

The spelling of 8557789855 in words is "eight billion, five hundred fifty-seven million, seven hundred eighty-nine thousand, eight hundred fifty-five".