27785826069 has 8 divisors (see below), whose sum is σ = 39227048640. Its totient is φ = 17434243776.

The previous prime is 27785826059. The next prime is 27785826109. The reversal of 27785826069 is 96062858772.

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

It is not a de Polignac number, because 27785826069 - 2¹¹ = 27785824021 is a prime.

It is a super-2 number, since 2×27785826069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27785826049) 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, 272410009 + ... + 272410110.

It is an arithmetic number, because the mean of its divisors is an integer number (4903381080).

Almost surely, 2^27785826069 is an apocalyptic number.

It is an amenable number.

27785826069 is a deficient number, since it is larger than the sum of its proper divisors (11441222571).

27785826069 is a wasteful number, since it uses less digits than its factorization.

27785826069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544820139.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 27785826069 in words is "twenty-seven billion, seven hundred eighty-five million, eight hundred twenty-six thousand, sixty-nine".