27012832243 has 4 divisors (see below), whose sum is σ = 27641037688. Its totient is φ = 26384626800.

The previous prime is 27012832219. The next prime is 27012832283. The reversal of 27012832243 is 34223821072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27012832243 - 2²¹ = 27010735091 is a prime.

It is a super-2 number, since 2×27012832243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27012832199 and 27012832208.

It is not an unprimeable number, because it can be changed into a prime (27012832213) 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 3 ways as a sum of consecutive naturals, for example, 314102658 + ... + 314102743.

It is an arithmetic number, because the mean of its divisors is an integer number (6910259422).

Almost surely, 2^27012832243 is an apocalyptic number.

27012832243 is a deficient number, since it is larger than the sum of its proper divisors (628205445).

27012832243 is an equidigital number, since it uses as much as digits as its factorization.

27012832243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628205444.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 27012832243 in words is "twenty-seven billion, twelve million, eight hundred thirty-two thousand, two hundred forty-three".