13898965428 has 72 divisors (see below), whose sum is σ = 35411856480. Its totient is φ = 4596419520.

The previous prime is 13898965397. The next prime is 13898965429. The reversal of 13898965428 is 82456989831.

13898965428 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 89 + 6 + 542 + 8 = 666.

13898965428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13898965429) 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 23 ways as a sum of consecutive naturals, for example, 2685283 + ... + 2690453.

It is an arithmetic number, because the mean of its divisors is an integer number (491831340).

Almost surely, 2^13898965428 is an apocalyptic number.

13898965428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13898965428 is an abundant number, since it is smaller than the sum of its proper divisors (21512891052).

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

13898965428 is a wasteful number, since it uses less digits than its factorization.

13898965428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757 (or 5752 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 13898965428 in words is "thirteen billion, eight hundred ninety-eight million, nine hundred sixty-five thousand, four hundred twenty-eight".