13143885973 has 8 divisors (see below), whose sum is σ = 13188785688. Its totient is φ = 13099021824.

The previous prime is 13143885959. The next prime is 13143885991. The reversal of 13143885973 is 37958834131.

It can be written as a sum of positive squares in 4 ways, for example, as 3161284 + 13140724689 = 1778^2 + 114633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13143885973 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 13143885973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143885943) 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 7 ways as a sum of consecutive naturals, for example, 879915 + ... + 894727.

It is an arithmetic number, because the mean of its divisors is an integer number (1648598211).

Almost surely, 2^13143885973 is an apocalyptic number.

It is an amenable number.

13143885973 is a deficient number, since it is larger than the sum of its proper divisors (44899715).

13143885973 is a wasteful number, since it uses less digits than its factorization.

13143885973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17783.

The product of its digits is 2177280, while the sum is 52.

The spelling of 13143885973 in words is "thirteen billion, one hundred forty-three million, eight hundred eighty-five thousand, nine hundred seventy-three".