13026786530 has 16 divisors (see below), whose sum is σ = 23451967800. Its totient is φ = 5209880832.

The previous prime is 13026786523. The next prime is 13026786559. The reversal of 13026786530 is 3568762031.

13026786530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12966149161 + 60637369 = 113869^2 + 7787^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36509 + ... + 165488.

Almost surely, 2^13026786530 is an apocalyptic number.

13026786530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13026786530 is a deficient number, since it is larger than the sum of its proper divisors (10425181270).

13026786530 is a wasteful number, since it uses less digits than its factorization.

13026786530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208453.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 13026786530 in words is "thirteen billion, twenty-six million, seven hundred eighty-six thousand, five hundred thirty".