4107728821 has 8 divisors (see below), whose sum is σ = 4695205824. Its totient is φ = 3520416480.

The previous prime is 4107728813. The next prime is 4107728839. The reversal of 4107728821 is 1288277014.

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

It is not a de Polignac number, because 4107728821 - 2³ = 4107728813 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 (4107728881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17961 + ... + 92401.

It is an arithmetic number, because the mean of its divisors is an integer number (586900728).

Almost surely, 2^4107728821 is an apocalyptic number.

It is an amenable number.

4107728821 is a deficient number, since it is larger than the sum of its proper divisors (587477003).

4107728821 is an equidigital number, since it uses as much as digits as its factorization.

4107728821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82331.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 4107728821 is about 64091.5659115925. The cubic root of 4107728821 is about 1601.5257348551.

The spelling of 4107728821 in words is "four billion, one hundred seven million, seven hundred twenty-eight thousand, eight hundred twenty-one".