13685009501 has 4 divisors (see below), whose sum is σ = 13706161632. Its totient is φ = 13663857372.

The previous prime is 13685009417. The next prime is 13685009593. The reversal of 13685009501 is 10590058631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13685009501 - 2³⁰ = 12611267677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13685009801) 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 3 ways as a sum of consecutive naturals, for example, 10575095 + ... + 10576388.

It is an arithmetic number, because the mean of its divisors is an integer number (3426540408).

Almost surely, 2^13685009501 is an apocalyptic number.

It is an amenable number.

13685009501 is a deficient number, since it is larger than the sum of its proper divisors (21152131).

13685009501 is an equidigital number, since it uses as much as digits as its factorization.

13685009501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21152130.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 13685009501 in words is "thirteen billion, six hundred eighty-five million, nine thousand, five hundred one".