2648031389 has 2 divisors, whose sum is σ = 2648031390. Its totient is φ = 2648031388.

The previous prime is 2648031361. The next prime is 2648031409. The reversal of 2648031389 is 9831308462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2647925764 + 105625 = 51458^2 + 325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2648031389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2648031359) 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 as a sum of consecutive naturals, namely, 1324015694 + 1324015695.

It is an arithmetic number, because the mean of its divisors is an integer number (1324015695).

Almost surely, 2^2648031389 is an apocalyptic number.

It is an amenable number.

2648031389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2648031389 is an equidigital number, since it uses as much as digits as its factorization.

2648031389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2648031389 is about 51459.0263122030. The cubic root of 2648031389 is about 1383.4847498198.

The spelling of 2648031389 in words is "two billion, six hundred forty-eight million, thirty-one thousand, three hundred eighty-nine".