3143784720439 has 32 divisors (see below), whose sum is σ = 3789517768704. Its totient is φ = 2572707540480.

The previous prime is 3143784720437. The next prime is 3143784720457. The reversal of 3143784720439 is 9340274873413.

It is not a de Polignac number, because 3143784720439 - 2¹ = 3143784720437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3143784720439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143784720431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73323522 + ... + 73366384.

It is an arithmetic number, because the mean of its divisors is an integer number (118422430272).

Almost surely, 2^{3143784720439} is an apocalyptic number.

3143784720439 is a deficient number, since it is larger than the sum of its proper divisors (645733048265).

3143784720439 is a wasteful number, since it uses less digits than its factorization.

3143784720439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59967.

The product of its (nonzero) digits is 12192768, while the sum is 55.

The spelling of 3143784720439 in words is "three trillion, one hundred forty-three billion, seven hundred eighty-four million, seven hundred twenty thousand, four hundred thirty-nine".