4127997679 has 4 divisors (see below), whose sum is σ = 4445535976. Its totient is φ = 3810459384.

The previous prime is 4127997667. The next prime is 4127997761. The reversal of 4127997679 is 9767997214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9767997214 = 2 ⋅4883998607.

It is a cyclic number.

It is not a de Polignac number, because 4127997679 - 2¹⁷ = 4127866607 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 (4127997659) 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, 158769129 + ... + 158769154.

It is an arithmetic number, because the mean of its divisors is an integer number (1111383994).

Almost surely, 2^4127997679 is an apocalyptic number.

4127997679 is a deficient number, since it is larger than the sum of its proper divisors (317538297).

4127997679 is a wasteful number, since it uses less digits than its factorization.

4127997679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317538296.

The product of its digits is 12002256, while the sum is 61.

The square root of 4127997679 is about 64249.4955544400. The cubic root of 4127997679 is about 1604.1555621736.

The spelling of 4127997679 in words is "four billion, one hundred twenty-seven million, nine hundred ninety-seven thousand, six hundred seventy-nine".