42943467191 has 4 divisors (see below), whose sum is σ = 42945712800. Its totient is φ = 42941221584.

The previous prime is 42943467103. The next prime is 42943467197. The reversal of 42943467191 is 19176434924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42943467191 - 2³⁰ = 41869725367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42943467197) 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 in 3 ways as a sum of consecutive naturals, for example, 1093871 + ... + 1132448.

It is an arithmetic number, because the mean of its divisors is an integer number (10736428200).

Almost surely, 2^42943467191 is an apocalyptic number.

42943467191 is a deficient number, since it is larger than the sum of its proper divisors (2245609).

42943467191 is a wasteful number, since it uses less digits than its factorization.

42943467191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245608.

The product of its digits is 1306368, while the sum is 50.

The spelling of 42943467191 in words is "forty-two billion, nine hundred forty-three million, four hundred sixty-seven thousand, one hundred ninety-one".