2648744939 has 2 divisors, whose sum is σ = 2648744940. Its totient is φ = 2648744938.

The previous prime is 2648744911. The next prime is 2648744999. The reversal of 2648744939 is 9394478462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2648744939 - 2¹⁶ = 2648679403 is a prime.

It is a super-2 number, since 2×2648744939² = 14031699503756227442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2648744909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324372469 + 1324372470.

It is an arithmetic number, because the mean of its divisors is an integer number (1324372470).

Almost surely, 2^2648744939 is an apocalyptic number.

2648744939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648744939 is an equidigital number, since it uses as much as digits as its factorization.

2648744939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 56.

The square root of 2648744939 is about 51465.9590311888. The cubic root of 2648744939 is about 1383.6090052560.

The spelling of 2648744939 in words is "two billion, six hundred forty-eight million, seven hundred forty-four thousand, nine hundred thirty-nine".