13441538691 has 24 divisors (see below), whose sum is σ = 22493176160. Its totient is φ = 7575659136.

The previous prime is 13441538683. The next prime is 13441538701. The reversal of 13441538691 is 19683514431.

13441538691 is a `hidden beast` number, since 13 + 4 + 41 + 538 + 69 + 1 = 666.

It is not a de Polignac number, because 13441538691 - 2³ = 13441538683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13441538791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1456756 + ... + 1465953.

Almost surely, 2^13441538691 is an apocalyptic number.

13441538691 is a deficient number, since it is larger than the sum of its proper divisors (9051637469).

13441538691 is a wasteful number, since it uses less digits than its factorization.

13441538691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922795 (or 2922792 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 13441538691 in words is "thirteen billion, four hundred forty-one million, five hundred thirty-eight thousand, six hundred ninety-one".