27685242489 has 8 divisors (see below), whose sum is σ = 37911323200. Its totient is φ = 17957995056.

The previous prime is 27685242469. The next prime is 27685242517. The reversal of 27685242489 is 98424258672.

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

It is not a de Polignac number, because 27685242489 - 2⁹ = 27685241977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27685242469) 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, 124708189 + ... + 124708410.

It is an arithmetic number, because the mean of its divisors is an integer number (4738915400).

Almost surely, 2^27685242489 is an apocalyptic number.

It is an amenable number.

27685242489 is a deficient number, since it is larger than the sum of its proper divisors (10226080711).

27685242489 is a wasteful number, since it uses less digits than its factorization.

27685242489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249416639.

The product of its digits is 15482880, while the sum is 57.

The spelling of 27685242489 in words is "twenty-seven billion, six hundred eighty-five million, two hundred forty-two thousand, four hundred eighty-nine".