2648748639 has 8 divisors (see below), whose sum is σ = 3568074160. Its totient is φ = 1747627776.

The previous prime is 2648748629. The next prime is 2648748647. The reversal of 2648748639 is 9368478462.

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

It is not a de Polignac number, because 2648748639 - 2⁹ = 2648748127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2648748629) 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, 4550824 + ... + 4551405.

It is an arithmetic number, because the mean of its divisors is an integer number (446009270).

Almost surely, 2^2648748639 is an apocalyptic number.

2648748639 is a deficient number, since it is larger than the sum of its proper divisors (919325521).

2648748639 is an equidigital number, since it uses as much as digits as its factorization.

2648748639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102329.

The product of its digits is 13934592, while the sum is 57.

The square root of 2648748639 is about 51465.9949772663. The cubic root of 2648748639 is about 1383.6096495046.

The spelling of 2648748639 in words is "two billion, six hundred forty-eight million, seven hundred forty-eight thousand, six hundred thirty-nine".