13684734385 has 8 divisors (see below), whose sum is σ = 18767635776. Its totient is φ = 9383817840.

The previous prime is 13684734383. The next prime is 13684734407. The reversal of 13684734385 is 58343748631.

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

It is not a de Polignac number, because 13684734385 - 2¹ = 13684734383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13684734383) 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, 195496171 + ... + 195496240.

It is an arithmetic number, because the mean of its divisors is an integer number (2345954472).

Almost surely, 2^13684734385 is an apocalyptic number.

It is an amenable number.

13684734385 is a deficient number, since it is larger than the sum of its proper divisors (5082901391).

13684734385 is an equidigital number, since it uses as much as digits as its factorization.

13684734385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390992423.

The product of its digits is 5806080, while the sum is 52.

The spelling of 13684734385 in words is "thirteen billion, six hundred eighty-four million, seven hundred thirty-four thousand, three hundred eighty-five".