8641729055 has 8 divisors (see below), whose sum is σ = 10915868400. Its totient is φ = 6549520896.

The previous prime is 8641729021. The next prime is 8641729069. The reversal of 8641729055 is 5509271468.

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 8641729055 - 2²² = 8637534751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45482690 + ... + 45482879.

It is an arithmetic number, because the mean of its divisors is an integer number (1364483550).

Almost surely, 2^8641729055 is an apocalyptic number.

8641729055 is a deficient number, since it is larger than the sum of its proper divisors (2274139345).

8641729055 is a wasteful number, since it uses less digits than its factorization.

8641729055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90965593.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 8641729055 is about 92960.9006787262. The cubic root of 8641729055 is about 2052.1080084774.

The spelling of 8641729055 in words is "eight billion, six hundred forty-one million, seven hundred twenty-nine thousand, fifty-five".