13385892128 has 36 divisors (see below), whose sum is σ = 30656086902. Its totient is φ = 5736810240.

The previous prime is 13385892109. The next prime is 13385892137. The reversal of 13385892128 is 82129858331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13121244304 + 264647824 = 114548^2 + 16268^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4266893 + ... + 4270028.

Almost surely, 2^13385892128 is an apocalyptic number.

It is an amenable number.

13385892128 is an abundant number, since it is smaller than the sum of its proper divisors (17270194774).

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

13385892128 is an equidigital number, since it uses as much as digits as its factorization.

13385892128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8536945 (or 8536930 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The spelling of 13385892128 in words is "thirteen billion, three hundred eighty-five million, eight hundred ninety-two thousand, one hundred twenty-eight".