2489727678 has 8 divisors (see below), whose sum is σ = 4979455368. Its totient is φ = 829909224.

The previous prime is 2489727661. The next prime is 2489727703. The reversal of 2489727678 is 8767279842.

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

2489727678 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 207477301 + ... + 207477312.

It is an arithmetic number, because the mean of its divisors is an integer number (622431921).

Almost surely, 2^2489727678 is an apocalyptic number.

2489727678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2489727678 is a wasteful number, since it uses less digits than its factorization.

2489727678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414954618.

The product of its digits is 18966528, while the sum is 60.

The square root of 2489727678 is about 49897.1710420541. The cubic root of 2489727678 is about 1355.3473649987.

The spelling of 2489727678 in words is "two billion, four hundred eighty-nine million, seven hundred twenty-seven thousand, six hundred seventy-eight".