13985394863 has 16 divisors (see below), whose sum is σ = 15680497536. Its totient is φ = 12363519840.

The previous prime is 13985394821. The next prime is 13985394877. The reversal of 13985394863 is 36849358931.

It is a cyclic number.

It is not a de Polignac number, because 13985394863 - 2⁶ = 13985394799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13985394463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42245 + ... + 172497.

It is an arithmetic number, because the mean of its divisors is an integer number (980031096).

Almost surely, 2^13985394863 is an apocalyptic number.

13985394863 is a deficient number, since it is larger than the sum of its proper divisors (1695102673).

13985394863 is a wasteful number, since it uses less digits than its factorization.

13985394863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130534.

The product of its digits is 16796160, while the sum is 59.

The spelling of 13985394863 in words is "thirteen billion, nine hundred eighty-five million, three hundred ninety-four thousand, eight hundred sixty-three".