1684144031439 has 8 divisors (see below), whose sum is σ = 2377615103280. Its totient is φ = 1056717823616.

The previous prime is 1684144031411. The next prime is 1684144031447. The reversal of 1684144031439 is 9341304414861.

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 1684144031439 - 2¹¹ = 1684144029391 is a prime.

It is a super-2 number, since 2×1684144031439² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684144031039) 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, 16511215944 + ... + 16511216045.

It is an arithmetic number, because the mean of its divisors is an integer number (297201887910).

Almost surely, 2^{1684144031439} is an apocalyptic number.

1684144031439 is a deficient number, since it is larger than the sum of its proper divisors (693471071841).

1684144031439 is a wasteful number, since it uses less digits than its factorization.

1684144031439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33022432009.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 1684144031439 in words is "one trillion, six hundred eighty-four billion, one hundred forty-four million, thirty-one thousand, four hundred thirty-nine".