16730057891 has 2 divisors, whose sum is σ = 16730057892. Its totient is φ = 16730057890.

The previous prime is 16730057881. The next prime is 16730057933. The reversal of 16730057891 is 19875003761.

16730057891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16730057891 is a prime.

It is a super-2 number, since 2×16730057891² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16730057881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8365028945 + 8365028946.

It is an arithmetic number, because the mean of its divisors is an integer number (8365028946).

Almost surely, 2^16730057891 is an apocalyptic number.

16730057891 is a deficient number, since it is larger than the sum of its proper divisors (1).

16730057891 is an equidigital number, since it uses as much as digits as its factorization.

16730057891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 16730057891 in words is "sixteen billion, seven hundred thirty million, fifty-seven thousand, eight hundred ninety-one".