4042456679 has 2 divisors, whose sum is σ = 4042456680. Its totient is φ = 4042456678.

The previous prime is 4042456643. The next prime is 4042456681. The reversal of 4042456679 is 9766542404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4042456679 - 2²⁰ = 4041408103 is a prime.

It is a Sophie Germain prime.

Together with 4042456681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042456619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021228339 + 2021228340.

It is an arithmetic number, because the mean of its divisors is an integer number (2021228340).

Almost surely, 2^4042456679 is an apocalyptic number.

4042456679 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042456679 is an equidigital number, since it uses as much as digits as its factorization.

4042456679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 4042456679 is about 63580.3167576255. The cubic root of 4042456679 is about 1592.9976122220.

The spelling of 4042456679 in words is "four billion, forty-two million, four hundred fifty-six thousand, six hundred seventy-nine".