4128254369 has 4 divisors (see below), whose sum is σ = 4128468144. Its totient is φ = 4128040596.

The previous prime is 4128254329. The next prime is 4128254411. The reversal of 4128254369 is 9634528214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4128254369 is a prime.

It is a super-2 number, since 2×4128254369² = 34084968270335176322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4128254309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74687 + ... + 117620.

It is an arithmetic number, because the mean of its divisors is an integer number (1032117036).

Almost surely, 2^4128254369 is an apocalyptic number.

It is an amenable number.

4128254369 is a deficient number, since it is larger than the sum of its proper divisors (213775).

4128254369 is a wasteful number, since it uses less digits than its factorization.

4128254369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213774.

The product of its digits is 414720, while the sum is 44.

The square root of 4128254369 is about 64251.4931266192. The cubic root of 4128254369 is about 1604.1888117205.

The spelling of 4128254369 in words is "four billion, one hundred twenty-eight million, two hundred fifty-four thousand, three hundred sixty-nine".