4128205069 has 8 divisors (see below), whose sum is σ = 4385348000. Its totient is φ = 3875049072.

The previous prime is 4128205057. The next prime is 4128205091. The reversal of 4128205069 is 9605028214.

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 4128205069 - 2¹¹ = 4128203021 is a prime.

It is a super-2 number, since 2×4128205069² = 34084154183434589522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128205019) 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, 994599 + ... + 998740.

It is an arithmetic number, because the mean of its divisors is an integer number (548168500).

Almost surely, 2^4128205069 is an apocalyptic number.

It is an amenable number.

4128205069 is a deficient number, since it is larger than the sum of its proper divisors (257142931).

4128205069 is a wasteful number, since it uses less digits than its factorization.

4128205069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993467.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 4128205069 is about 64251.1094768020. The cubic root of 4128205069 is about 1604.1824259041.

The spelling of 4128205069 in words is "four billion, one hundred twenty-eight million, two hundred five thousand, sixty-nine".