4042429781867 has 2 divisors, whose sum is σ = 4042429781868. Its totient is φ = 4042429781866.

The previous prime is 4042429781849. The next prime is 4042429781879. The reversal of 4042429781867 is 7681879242404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4042429781867 - 2²⁸ = 4042161346411 is a prime.

It is not a weakly prime, because it can be changed into another prime (4042429381867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021214890933 + 2021214890934.

It is an arithmetic number, because the mean of its divisors is an integer number (2021214890934).

Almost surely, 2^{4042429781867} is an apocalyptic number.

4042429781867 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042429781867 is an equidigital number, since it uses as much as digits as its factorization.

4042429781867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43352064, while the sum is 62.

The spelling of 4042429781867 in words is "four trillion, forty-two billion, four hundred twenty-nine million, seven hundred eighty-one thousand, eight hundred sixty-seven".