16243243273 has 8 divisors (see below), whose sum is σ = 16966497600. Its totient is φ = 15530865168.

The previous prime is 16243243267. The next prime is 16243243307. The reversal of 16243243273 is 37234234261.

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 16243243273 - 2¹³ = 16243235081 is a prime.

It is a super-4 number, since 4×16243243273⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16243243223) 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, 2716003 + ... + 2721976.

It is an arithmetic number, because the mean of its divisors is an integer number (2120812200).

Almost surely, 2^16243243273 is an apocalyptic number.

It is an amenable number.

16243243273 is a deficient number, since it is larger than the sum of its proper divisors (723254327).

16243243273 is a wasteful number, since it uses less digits than its factorization.

16243243273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438111.

The product of its digits is 145152, while the sum is 37.

The spelling of 16243243273 in words is "sixteen billion, two hundred forty-three million, two hundred forty-three thousand, two hundred seventy-three".