27863685353 has 16 divisors (see below), whose sum is σ = 32036484480. Its totient is φ = 23739091200.

The previous prime is 27863685323. The next prime is 27863685379. The reversal of 27863685353 is 35358636872.

It is not a de Polignac number, because 27863685353 - 2²⁴ = 27846908137 is a prime.

It is a super-2 number, since 2×27863685353² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27863685323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3202433 + ... + 3211121.

It is an arithmetic number, because the mean of its divisors is an integer number (2002280280).

Almost surely, 2^27863685353 is an apocalyptic number.

It is an amenable number.

27863685353 is a deficient number, since it is larger than the sum of its proper divisors (4172799127).

27863685353 is a wasteful number, since it uses less digits than its factorization.

27863685353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11408.

The product of its digits is 21772800, while the sum is 56.

The spelling of 27863685353 in words is "twenty-seven billion, eight hundred sixty-three million, six hundred eighty-five thousand, three hundred fifty-three".