42000422420249 has 2 divisors, whose sum is σ = 42000422420250. Its totient is φ = 42000422420248.

The previous prime is 42000422420233. The next prime is 42000422420269. The reversal of 42000422420249 is 94202422400024.

42000422420249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22073412115225 + 19927010305024 = 4698235^2 + 4463968^2 .

It is a cyclic number.

It is not a de Polignac number, because 42000422420249 - 2⁴ = 42000422420233 is a prime.

It is not a weakly prime, because it can be changed into another prime (42000422420269) 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, 21000211210124 + 21000211210125.

It is an arithmetic number, because the mean of its divisors is an integer number (21000211210125).

Almost surely, 2^{42000422420249} is an apocalyptic number.

It is an amenable number.

42000422420249 is a deficient number, since it is larger than the sum of its proper divisors (1).

42000422420249 is an equidigital number, since it uses as much as digits as its factorization.

42000422420249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 42000422420249 in words is "forty-two trillion, four hundred twenty-two million, four hundred twenty thousand, two hundred forty-nine".