16939547353 has 8 divisors (see below), whose sum is σ = 17263125000. Its totient is φ = 16616116608.

The previous prime is 16939547329. The next prime is 16939547381. The reversal of 16939547353 is 35374593961.

It can be written as a sum of positive squares in 4 ways, for example, as 5042846169 + 11896701184 = 71013^2 + 109072^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16939547353 - 2⁵ = 16939547321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16939547294 and 16939547303.

It is not an unprimeable number, because it can be changed into a prime (16939547393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212023 + ... + 280771.

It is an arithmetic number, because the mean of its divisors is an integer number (2157890625).

Almost surely, 2^16939547353 is an apocalyptic number.

It is an amenable number.

16939547353 is a deficient number, since it is larger than the sum of its proper divisors (323577647).

16939547353 is an equidigital number, since it uses as much as digits as its factorization.

16939547353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73451.

The product of its digits is 9185400, while the sum is 55.

The spelling of 16939547353 in words is "sixteen billion, nine hundred thirty-nine million, five hundred forty-seven thousand, three hundred fifty-three".