2648256819 has 8 divisors (see below), whose sum is σ = 3802625232. Its totient is φ = 1629696480.

The previous prime is 2648256817. The next prime is 2648256859. The reversal of 2648256819 is 9186528462.

It is a happy number.

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

It is not a de Polignac number, because 2648256819 - 2¹ = 2648256817 is a prime.

It is a super-2 number, since 2×2648256819² = 14026528358759997522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2648256811) 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 7 ways as a sum of consecutive naturals, for example, 33951972 + ... + 33952049.

It is an arithmetic number, because the mean of its divisors is an integer number (475328154).

Almost surely, 2^2648256819 is an apocalyptic number.

2648256819 is a deficient number, since it is larger than the sum of its proper divisors (1154368413).

2648256819 is a wasteful number, since it uses less digits than its factorization.

2648256819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67904037.

The product of its digits is 1658880, while the sum is 51.

The square root of 2648256819 is about 51461.2166490455. The cubic root of 2648256819 is about 1383.5240079291.

The spelling of 2648256819 in words is "two billion, six hundred forty-eight million, two hundred fifty-six thousand, eight hundred nineteen".