13809261530 has 8 divisors (see below), whose sum is σ = 24856670772. Its totient is φ = 5523704608.

The previous prime is 13809261523. The next prime is 13809261539. The reversal of 13809261530 is 3516290831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13808835121 + 426409 = 117511^2 + 653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×13809261530³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13809261539) 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 3 ways as a sum of consecutive naturals, for example, 690463067 + ... + 690463086.

Almost surely, 2^13809261530 is an apocalyptic number.

13809261530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13809261530 is a deficient number, since it is larger than the sum of its proper divisors (11047409242).

13809261530 is a wasteful number, since it uses less digits than its factorization.

13809261530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380926160.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 13809261530 in words is "thirteen billion, eight hundred nine million, two hundred sixty-one thousand, five hundred thirty".