42943467197 has 2 divisors, whose sum is σ = 42943467198. Its totient is φ = 42943467196.

The previous prime is 42943467103. The next prime is 42943467209. The reversal of 42943467197 is 79176434924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32373365476 + 10570101721 = 179926^2 + 102811^2 .

It is a cyclic number.

It is not a de Polignac number, because 42943467197 - 2³⁴ = 25763598013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42943467397) 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, 21471733598 + 21471733599.

It is an arithmetic number, because the mean of its divisors is an integer number (21471733599).

Almost surely, 2^42943467197 is an apocalyptic number.

It is an amenable number.

42943467197 is a deficient number, since it is larger than the sum of its proper divisors (1).

42943467197 is an equidigital number, since it uses as much as digits as its factorization.

42943467197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 56.

The spelling of 42943467197 in words is "forty-two billion, nine hundred forty-three million, four hundred sixty-seven thousand, one hundred ninety-seven".