13930844841 has 9 divisors (see below), whose sum is σ = 20122842909. Its totient is φ = 9286993836.

The previous prime is 13930844833. The next prime is 13930844903. The reversal of 13930844841 is 14844803931.

The square root of 13930844841 is 118029.

It is a perfect power (a square), and thus also a powerful number.

13930844841 is a `hidden beast` number, since 1 + 3 + 93 + 0 + 84 + 484 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 13930844841 - 2³ = 13930844833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13930844141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 334416 + ... + 373758.

Almost surely, 2^13930844841 is an apocalyptic number.

13930844841 is the 118029-th square number.

13930844841 is the 59015-th centered octagonal number.

It is an amenable number.

13930844841 is a deficient number, since it is larger than the sum of its proper divisors (6191998068).

13930844841 is an frugal number, since it uses more digits than its factorization.

13930844841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78692 (or 39346 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 13930844841 in words is "thirteen billion, nine hundred thirty million, eight hundred forty-four thousand, eight hundred forty-one".