2654919809 has 2 divisors, whose sum is σ = 2654919810. Its totient is φ = 2654919808.

The previous prime is 2654919703. The next prime is 2654919829. The reversal of 2654919809 is 9089194562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2644839184 + 10080625 = 51428^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2654919809 - 2¹² = 2654915713 is a prime.

It is not a weakly prime, because it can be changed into another prime (2654919829) 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, 1327459904 + 1327459905.

It is an arithmetic number, because the mean of its divisors is an integer number (1327459905).

Almost surely, 2^2654919809 is an apocalyptic number.

It is an amenable number.

2654919809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654919809 is an equidigital number, since it uses as much as digits as its factorization.

2654919809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The square root of 2654919809 is about 51525.9139559892. The cubic root of 2654919809 is about 1384.6833474375.

The spelling of 2654919809 in words is "two billion, six hundred fifty-four million, nine hundred nineteen thousand, eight hundred nine".