8855868729 has 8 divisors (see below), whose sum is σ = 11880266272. Its totient is φ = 5867691840.

The previous prime is 8855868719. The next prime is 8855868731. The reversal of 8855868729 is 9278685588.

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

It is not a de Polignac number, because 8855868729 - 2⁷ = 8855868601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8855868729.

It is not an unprimeable number, because it can be changed into a prime (8855868719) 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, 9054592 + ... + 9055569.

It is an arithmetic number, because the mean of its divisors is an integer number (1485033284).

Almost surely, 2^8855868729 is an apocalyptic number.

It is an amenable number.

8855868729 is a deficient number, since it is larger than the sum of its proper divisors (3024397543).

8855868729 is a wasteful number, since it uses less digits than its factorization.

8855868729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18110327.

The product of its digits is 77414400, while the sum is 66.

The square root of 8855868729 is about 94105.6253844583. The cubic root of 8855868729 is about 2068.9201217102.

The spelling of 8855868729 in words is "eight billion, eight hundred fifty-five million, eight hundred sixty-eight thousand, seven hundred twenty-nine".