27838399113 has 128 divisors (see below), whose sum is σ = 52119936000. Its totient is φ = 14317793280.

The previous prime is 27838399103. The next prime is 27838399123. The reversal of 27838399113 is 31199383872.

It is an interprime number because it is at equal distance from previous prime (27838399103) and next prime (27838399123).

It is not a de Polignac number, because 27838399113 - 2⁴ = 27838399097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27838399113.

It is not an unprimeable number, because it can be changed into a prime (27838399103) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10154923 + ... + 10157663.

It is an arithmetic number, because the mean of its divisors is an integer number (407187000).

Almost surely, 2^27838399113 is an apocalyptic number.

It is an amenable number.

27838399113 is a deficient number, since it is larger than the sum of its proper divisors (24281536887).

27838399113 is a wasteful number, since it uses less digits than its factorization.

27838399113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2906 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 27838399113 in words is "twenty-seven billion, eight hundred thirty-eight million, three hundred ninety-nine thousand, one hundred thirteen".