491445037043 has 2 divisors, whose sum is σ = 491445037044. Its totient is φ = 491445037042.

The previous prime is 491445037009. The next prime is 491445037067. The reversal of 491445037043 is 340730544194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491445037043 - 2⁸ = 491445036787 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 491445036985 and 491445037003.

It is not a weakly prime, because it can be changed into another prime (491445034043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245722518521 + 245722518522.

It is an arithmetic number, because the mean of its divisors is an integer number (245722518522).

Almost surely, 2^491445037043 is an apocalyptic number.

491445037043 is a deficient number, since it is larger than the sum of its proper divisors (1).

491445037043 is an equidigital number, since it uses as much as digits as its factorization.

491445037043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 491445037043 in words is "four hundred ninety-one billion, four hundred forty-five million, thirty-seven thousand, forty-three".