13634711728 has 30 divisors (see below), whose sum is σ = 29037151052. Its totient is φ = 6197595360.

The previous prime is 13634711723. The next prime is 13634711737. The reversal of 13634711728 is 82711743631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13634711723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3519426 + ... + 3523297.

Almost surely, 2^13634711728 is an apocalyptic number.

It is an amenable number.

13634711728 is an abundant number, since it is smaller than the sum of its proper divisors (15402439324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13634711728 is a wasteful number, since it uses less digits than its factorization.

13634711728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7042753 (or 7042736 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The spelling of 13634711728 in words is "thirteen billion, six hundred thirty-four million, seven hundred eleven thousand, seven hundred twenty-eight".