27842489349 has 4 divisors (see below), whose sum is σ = 37123319136. Its totient is φ = 18561659564.

The previous prime is 27842489329. The next prime is 27842489369. The reversal of 27842489349 is 94398424872.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (27842489329) and next prime (27842489369).

It is a cyclic number.

It is not a de Polignac number, because 27842489349 - 2²⁰ = 27841440773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27842489292 and 27842489301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27842489329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4640414889 + ... + 4640414894.

It is an arithmetic number, because the mean of its divisors is an integer number (9280829784).

Almost surely, 2^27842489349 is an apocalyptic number.

It is an amenable number.

27842489349 is a deficient number, since it is larger than the sum of its proper divisors (9280829787).

27842489349 is an equidigital number, since it uses as much as digits as its factorization.

27842489349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9280829786.

The product of its digits is 27869184, while the sum is 60.

The spelling of 27842489349 in words is "twenty-seven billion, eight hundred forty-two million, four hundred eighty-nine thousand, three hundred forty-nine".