2654478289 has 6 divisors (see below), whose sum is σ = 2688510930. Its totient is φ = 2620871136.

The previous prime is 2654478271. The next prime is 2654478317. The reversal of 2654478289 is 9828744562.

It can be written as a sum of positive squares in only one way, i.e., 2653074064 + 1404225 = 51508^2 + 1185^2 .

It is not a de Polignac number, because 2654478289 - 2¹¹ = 2654476241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2654478259) 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 5 ways as a sum of consecutive naturals, for example, 206424 + ... + 218905.

It is an arithmetic number, because the mean of its divisors is an integer number (448085155).

Almost surely, 2^2654478289 is an apocalyptic number.

It is an amenable number.

2654478289 is a deficient number, since it is larger than the sum of its proper divisors (34032641).

2654478289 is an frugal number, since it uses more digits than its factorization.

2654478289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425487 (or 425408 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The square root of 2654478289 is about 51521.6293317671. The cubic root of 2654478289 is about 1384.6065843800.

The spelling of 2654478289 in words is "two billion, six hundred fifty-four million, four hundred seventy-eight thousand, two hundred eighty-nine".