13871026490 has 16 divisors (see below), whose sum is σ = 24969199752. Its totient is φ = 5548110144.

The previous prime is 13871026471. The next prime is 13871026531. The reversal of 13871026490 is 9462017831.

13871026490 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 13500348481 + 370678009 = 116191^2 + 19253^2 .

It is a Curzon number.

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, 305972 + ... + 348368.

Almost surely, 2^13871026490 is an apocalyptic number.

13871026490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13871026490 is a deficient number, since it is larger than the sum of its proper divisors (11098173262).

13871026490 is a wasteful number, since it uses less digits than its factorization.

13871026490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75121.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 13871026490 in words is "thirteen billion, eight hundred seventy-one million, twenty-six thousand, four hundred ninety".