16421027349 has 16 divisors (see below), whose sum is σ = 22168710144. Its totient is φ = 10810470000.

The previous prime is 16421027333. The next prime is 16421027377. The reversal of 16421027349 is 94372012461.

It is not a de Polignac number, because 16421027349 - 2⁴ = 16421027333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16421027149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571374 + ... + 599424.

It is an arithmetic number, because the mean of its divisors is an integer number (1385544384).

Almost surely, 2^16421027349 is an apocalyptic number.

It is an amenable number.

16421027349 is a deficient number, since it is larger than the sum of its proper divisors (5747682795).

16421027349 is a wasteful number, since it uses less digits than its factorization.

16421027349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30488.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 16421027349 in words is "sixteen billion, four hundred twenty-one million, twenty-seven thousand, three hundred forty-nine".