4127240869 has 4 divisors (see below), whose sum is σ = 4132057644. Its totient is φ = 4122424096.

The previous prime is 4127240867. The next prime is 4127240891. The reversal of 4127240869 is 9680427214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3475102500 + 652138369 = 58950^2 + 25537^2 .

It is a cyclic number.

It is not a de Polignac number, because 4127240869 - 2¹ = 4127240867 is a prime.

It is a super-2 number, since 2×4127240869² = 34068234381487750322, 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 (4127240867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407102 + ... + 2408815.

It is an arithmetic number, because the mean of its divisors is an integer number (1033014411).

Almost surely, 2^4127240869 is an apocalyptic number.

It is an amenable number.

4127240869 is a deficient number, since it is larger than the sum of its proper divisors (4816775).

4127240869 is an equidigital number, since it uses as much as digits as its factorization.

4127240869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816774.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 4127240869 is about 64243.6056662451. The cubic root of 4127240869 is about 1604.0575231027.

The spelling of 4127240869 in words is "four billion, one hundred twenty-seven million, two hundred forty thousand, eight hundred sixty-nine".