13513500028 has 12 divisors (see below), whose sum is σ = 27027000112. Its totient is φ = 5791500000.

The previous prime is 13513499983. The next prime is 13513500029. The reversal of 13513500028 is 82000531531.

13513500028 is an admirable number.

It is a super-2 number, since 2×13513500028² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 482625001 = 13513500028 / (1 + 3 + 5 + 1 + 3 + 5 + 0 + 0 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 13513499969 and 13513500005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13513500029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241312473 + ... + 241312528.

Almost surely, 2^13513500028 is an apocalyptic number.

It is an amenable number.

13513500028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13513500028 is a wasteful number, since it uses less digits than its factorization.

13513500028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482625012 (or 482625010 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 13513500028 in words is "thirteen billion, five hundred thirteen million, five hundred thousand, twenty-eight".