16402027843439 has 12 divisors (see below), whose sum is σ = 19695390907968. Its totient is φ = 13605368716800.

The previous prime is 16402027843373. The next prime is 16402027843459. The reversal of 16402027843439 is 93434872020461.

It is not a de Polignac number, because 16402027843439 - 2¹⁶ = 16402027777903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16402027843459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5398954322 + ... + 5398957359.

It is an arithmetic number, because the mean of its divisors is an integer number (1641282575664).

Almost surely, 2^{16402027843439} is an apocalyptic number.

16402027843439 is a deficient number, since it is larger than the sum of its proper divisors (3293363064529).

16402027843439 is a wasteful number, since it uses less digits than its factorization.

16402027843439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10797911726 (or 10797911719 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 16402027843439 in words is "sixteen trillion, four hundred two billion, twenty-seven million, eight hundred forty-three thousand, four hundred thirty-nine".