27798318269 has 8 divisors (see below), whose sum is σ = 28067476320. Its totient is φ = 27529333776.

The previous prime is 27798318257. The next prime is 27798318299. The reversal of 27798318269 is 96281389772.

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 27798318269 - 2⁴ = 27798318253 is a prime.

It is a super-2 number, since 2×27798318269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27798318299) 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, 290882 + ... + 374444.

It is an arithmetic number, because the mean of its divisors is an integer number (3508434540).

Almost surely, 2^27798318269 is an apocalyptic number.

It is an amenable number.

27798318269 is a deficient number, since it is larger than the sum of its proper divisors (269158051).

27798318269 is a wasteful number, since it uses less digits than its factorization.

27798318269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86779.

The product of its digits is 18289152, while the sum is 62.

The spelling of 27798318269 in words is "twenty-seven billion, seven hundred ninety-eight million, three hundred eighteen thousand, two hundred sixty-nine".