13685442305 has 16 divisors (see below), whose sum is σ = 16481836800. Its totient is φ = 10908865152.

The previous prime is 13685442299. The next prime is 13685442371. The reversal of 13685442305 is 50324458631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13685442305 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3966221 + ... + 3969669.

It is an arithmetic number, because the mean of its divisors is an integer number (1030114800).

Almost surely, 2^13685442305 is an apocalyptic number.

It is an amenable number.

13685442305 is a deficient number, since it is larger than the sum of its proper divisors (2796394495).

13685442305 is a wasteful number, since it uses less digits than its factorization.

13685442305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 13685442305 in words is "thirteen billion, six hundred eighty-five million, four hundred forty-two thousand, three hundred five".