13807105838 has 4 divisors (see below), whose sum is σ = 20710658760. Its totient is φ = 6903552918.

The previous prime is 13807105831. The next prime is 13807105909. The reversal of 13807105838 is 83850170831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83850170831 = 7 ⋅11978595833.

It is a super-5 number, since 5×13807105838⁵ (a number of 52 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13807105831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3451776458 + ... + 3451776461.

It is an arithmetic number, because the mean of its divisors is an integer number (5177664690).

Almost surely, 2^13807105838 is an apocalyptic number.

13807105838 is a deficient number, since it is larger than the sum of its proper divisors (6903552922).

13807105838 is an equidigital number, since it uses as much as digits as its factorization.

13807105838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6903552921.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 13807105838 in words is "thirteen billion, eight hundred seven million, one hundred five thousand, eight hundred thirty-eight".