42454542113 has 2 divisors, whose sum is σ = 42454542114. Its totient is φ = 42454542112.

The previous prime is 42454542071. The next prime is 42454542121. The reversal of 42454542113 is 31124545424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39862917649 + 2591624464 = 199657^2 + 50908^2 .

It is a cyclic number.

It is not a de Polignac number, because 42454542113 - 2⁶ = 42454542049 is a prime.

It is not a weakly prime, because it can be changed into another prime (42454542173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21227271056 + 21227271057.

It is an arithmetic number, because the mean of its divisors is an integer number (21227271057).

Almost surely, 2^42454542113 is an apocalyptic number.

It is an amenable number.

42454542113 is a deficient number, since it is larger than the sum of its proper divisors (1).

42454542113 is an equidigital number, since it uses as much as digits as its factorization.

42454542113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 35.

The spelling of 42454542113 in words is "forty-two billion, four hundred fifty-four million, five hundred forty-two thousand, one hundred thirteen".