16427895643 has 4 divisors (see below), whose sum is σ = 16557249280. Its totient is φ = 16298542008.

The previous prime is 16427895641. The next prime is 16427895647. The reversal of 16427895643 is 34659872461.

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

It is a cyclic number.

It is not a de Polignac number, because 16427895643 - 2¹ = 16427895641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16427895641) 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, 64676628 + ... + 64676881.

It is an arithmetic number, because the mean of its divisors is an integer number (4139312320).

Almost surely, 2^16427895643 is an apocalyptic number.

16427895643 is a deficient number, since it is larger than the sum of its proper divisors (129353637).

16427895643 is a wasteful number, since it uses less digits than its factorization.

16427895643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129353636.

The product of its digits is 8709120, while the sum is 55.

The spelling of 16427895643 in words is "sixteen billion, four hundred twenty-seven million, eight hundred ninety-five thousand, six hundred forty-three".