8755045721 has 8 divisors (see below), whose sum is σ = 8848527744. Its totient is φ = 8661697200.

The previous prime is 8755045667. The next prime is 8755045727. The reversal of 8755045721 is 1275405578.

8755045721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8755045721 - 2²⁶ = 8687936857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8755045727) 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, 101366 + ... + 166688.

It is an arithmetic number, because the mean of its divisors is an integer number (1106065968).

Almost surely, 2^8755045721 is an apocalyptic number.

It is an amenable number.

8755045721 is a deficient number, since it is larger than the sum of its proper divisors (93482023).

8755045721 is a wasteful number, since it uses less digits than its factorization.

8755045721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66751.

The product of its (nonzero) digits is 392000, while the sum is 44.

The square root of 8755045721 is about 93568.4012955228. The cubic root of 8755045721 is about 2061.0386662837.

The spelling of 8755045721 in words is "eight billion, seven hundred fifty-five million, forty-five thousand, seven hundred twenty-one".