16457442943 has 4 divisors (see below), whose sum is σ = 17425527840. Its totient is φ = 15489358048.

The previous prime is 16457442929. The next prime is 16457442973. The reversal of 16457442943 is 34924475461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16457442943 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 (16457442973) 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, 484042423 + ... + 484042456.

It is an arithmetic number, because the mean of its divisors is an integer number (4356381960).

Almost surely, 2^16457442943 is an apocalyptic number.

16457442943 is a deficient number, since it is larger than the sum of its proper divisors (968084897).

16457442943 is an equidigital number, since it uses as much as digits as its factorization.

16457442943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968084896.

The product of its digits is 2903040, while the sum is 49.

The spelling of 16457442943 in words is "sixteen billion, four hundred fifty-seven million, four hundred forty-two thousand, nine hundred forty-three".