13985111543 has 8 divisors (see below), whose sum is σ = 15074245200. Its totient is φ = 12897885888.

The previous prime is 13985111533. The next prime is 13985111573. The reversal of 13985111543 is 34511158931.

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 13985111543 - 2¹⁰ = 13985110519 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 13985111543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13985111513) 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, 461753 + ... + 491106.

It is an arithmetic number, because the mean of its divisors is an integer number (1884280650).

Almost surely, 2^13985111543 is an apocalyptic number.

13985111543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13985111543 is a deficient number, since it is larger than the sum of its proper divisors (1089133657).

13985111543 is a wasteful number, since it uses less digits than its factorization.

13985111543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954001.

The product of its digits is 64800, while the sum is 41.

The spelling of 13985111543 in words is "thirteen billion, nine hundred eighty-five million, one hundred eleven thousand, five hundred forty-three".