16123876189 has 2 divisors, whose sum is σ = 16123876190. Its totient is φ = 16123876188.

The previous prime is 16123876177. The next prime is 16123876207. The reversal of 16123876189 is 98167832161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15368560900 + 755315289 = 123970^2 + 27483^2 .

It is a cyclic number.

It is not a de Polignac number, because 16123876189 - 2⁵ = 16123876157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16123876289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8061938094 + 8061938095.

It is an arithmetic number, because the mean of its divisors is an integer number (8061938095).

Almost surely, 2^16123876189 is an apocalyptic number.

It is an amenable number.

16123876189 is a deficient number, since it is larger than the sum of its proper divisors (1).

16123876189 is an equidigital number, since it uses as much as digits as its factorization.

16123876189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The spelling of 16123876189 in words is "sixteen billion, one hundred twenty-three million, eight hundred seventy-six thousand, one hundred eighty-nine".