13898533860 has 36 divisors (see below), whose sum is σ = 42158886588. Its totient is φ = 3706275648.

The previous prime is 13898533853. The next prime is 13898533867. The reversal of 13898533860 is 6833589831.

It is a happy number.

13898533860 is a `hidden beast` number, since 13 + 8 + 98 + 533 + 8 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (13898533853) and next prime (13898533867).

It can be written as a sum of positive squares in 2 ways, for example, as 4173418404 + 9725115456 = 64602^2 + 98616^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 13898533797 and 13898533806.

It is not an unprimeable number, because it can be changed into a prime (13898533867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38606859 + ... + 38607218.

It is an arithmetic number, because the mean of its divisors is an integer number (1171080183).

Almost surely, 2^13898533860 is an apocalyptic number.

13898533860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13898533860 is an abundant number, since it is smaller than the sum of its proper divisors (28260352728).

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

13898533860 is a wasteful number, since it uses less digits than its factorization.

13898533860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77214092 (or 77214087 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 13898533860 in words is "thirteen billion, eight hundred ninety-eight million, five hundred thirty-three thousand, eight hundred sixty".