2649238518 has 8 divisors (see below), whose sum is σ = 5298477048. Its totient is φ = 883079504.

The previous prime is 2649238513. The next prime is 2649238523. The reversal of 2649238518 is 8158329462.

It is an interprime number because it is at equal distance from previous prime (2649238513) and next prime (2649238523).

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

2649238518 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649238513) 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, 220769871 + ... + 220769882.

It is an arithmetic number, because the mean of its divisors is an integer number (662309631).

Almost surely, 2^2649238518 is an apocalyptic number.

2649238518 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.

2649238518 is a wasteful number, since it uses less digits than its factorization.

2649238518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441539758.

The product of its digits is 829440, while the sum is 48.

The square root of 2649238518 is about 51470.7540065230. The cubic root of 2649238518 is about 1383.6949425521.

The spelling of 2649238518 in words is "two billion, six hundred forty-nine million, two hundred thirty-eight thousand, five hundred eighteen".