16893819093689 has 4 divisors (see below), whose sum is σ = 16893835018020. Its totient is φ = 16893803169360.

The previous prime is 16893819093677. The next prime is 16893819093691. The reversal of 16893819093689 is 98639091839861.

It is a happy number.

16893819093689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3597527791225 + 13296291302464 = 1896715^2 + 3646408^2 .

It is a cyclic number.

It is not a de Polignac number, because 16893819093689 - 2⁸ = 16893819093433 is a prime.

It is a super-2 number, since 2×16893819093689² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16893819093629) 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, 6247802 + ... + 8533619.

It is an arithmetic number, because the mean of its divisors is an integer number (4223458754505).

Almost surely, 2^{16893819093689} is an apocalyptic number.

It is an amenable number.

16893819093689 is a deficient number, since it is larger than the sum of its proper divisors (15924331).

16893819093689 is a wasteful number, since it uses less digits than its factorization.

16893819093689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15924330.

The product of its (nonzero) digits is 1088391168, while the sum is 80.

The spelling of 16893819093689 in words is "sixteen trillion, eight hundred ninety-three billion, eight hundred nineteen million, ninety-three thousand, six hundred eighty-nine".