42743238043 has 4 divisors (see below), whose sum is σ = 46628986968. Its totient is φ = 38857489120.

The previous prime is 42743238029. The next prime is 42743238047. The reversal of 42743238043 is 34083234724.

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 42743238043 - 2⁹ = 42743237531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42743237987 and 42743238005.

It is not an unprimeable number, because it can be changed into a prime (42743238047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942874446 + ... + 1942874467.

It is an arithmetic number, because the mean of its divisors is an integer number (11657246742).

Almost surely, 2^42743238043 is an apocalyptic number.

42743238043 is a deficient number, since it is larger than the sum of its proper divisors (3885748925).

42743238043 is a wasteful number, since it uses less digits than its factorization.

42743238043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885748924.

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 42743238043 in words is "forty-two billion, seven hundred forty-three million, two hundred thirty-eight thousand, forty-three".