42454542071 has 2 divisors, whose sum is σ = 42454542072. Its totient is φ = 42454542070.

The previous prime is 42454542059. The next prime is 42454542113. The reversal of 42454542071 is 17024545424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42454542071 - 2⁶ = 42454542007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42454542041) 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, 21227271035 + 21227271036.

It is an arithmetic number, because the mean of its divisors is an integer number (21227271036).

Almost surely, 2^42454542071 is an apocalyptic number.

42454542071 is a deficient number, since it is larger than the sum of its proper divisors (1).

42454542071 is an equidigital number, since it uses as much as digits as its factorization.

42454542071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 179200, while the sum is 38.

The spelling of 42454542071 in words is "forty-two billion, four hundred fifty-four million, five hundred forty-two thousand, seventy-one".