27683343381 has 8 divisors (see below), whose sum is σ = 36918308160. Its totient is φ = 18451970432.

The previous prime is 27683343379. The next prime is 27683343397. The reversal of 27683343381 is 18334338672.

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

It is a cyclic number.

It is not a de Polignac number, because 27683343381 - 2¹ = 27683343379 is a prime.

It is a super-2 number, since 2×27683343381² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27683343381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27683343301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879921 + ... + 910838.

It is an arithmetic number, because the mean of its divisors is an integer number (4614788520).

Almost surely, 2^27683343381 is an apocalyptic number.

It is an amenable number.

27683343381 is a deficient number, since it is larger than the sum of its proper divisors (9234964779).

27683343381 is a wasteful number, since it uses less digits than its factorization.

27683343381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795915.

The product of its digits is 1741824, while the sum is 48.

The spelling of 27683343381 in words is "twenty-seven billion, six hundred eighty-three million, three hundred forty-three thousand, three hundred eighty-one".