13634389895 has 48 divisors (see below), whose sum is σ = 20643825888. Its totient is φ = 8584611840.

The previous prime is 13634389891. The next prime is 13634389907. The reversal of 13634389895 is 59898343631.

13634389895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13634389895 - 2² = 13634389891 is a prime.

It is a super-2 number, since 2×13634389895² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13634389891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130844 + ... + 210686.

It is an arithmetic number, because the mean of its divisors is an integer number (430079706).

Almost surely, 2^13634389895 is an apocalyptic number.

13634389895 is a deficient number, since it is larger than the sum of its proper divisors (7009435993).

13634389895 is a wasteful number, since it uses less digits than its factorization.

13634389895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79920 (or 79913 counting only the distinct ones).

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

The spelling of 13634389895 in words is "thirteen billion, six hundred thirty-four million, three hundred eighty-nine thousand, eight hundred ninety-five".