4042438145827 has 2 divisors, whose sum is σ = 4042438145828. Its totient is φ = 4042438145826.

The previous prime is 4042438145761. The next prime is 4042438145869. The reversal of 4042438145827 is 7285418342404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4042438145827 - 2¹⁵ = 4042438113059 is a prime.

It is not a weakly prime, because it can be changed into another prime (4042438145897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021219072913 + 2021219072914.

It is an arithmetic number, because the mean of its divisors is an integer number (2021219072914).

Almost surely, 2^{4042438145827} is an apocalyptic number.

4042438145827 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042438145827 is an equidigital number, since it uses as much as digits as its factorization.

4042438145827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6881280, while the sum is 52.

The spelling of 4042438145827 in words is "four trillion, forty-two billion, four hundred thirty-eight million, one hundred forty-five thousand, eight hundred twenty-seven".