2654788321 has 2 divisors, whose sum is σ = 2654788322. Its totient is φ = 2654788320.

The previous prime is 2654788313. The next prime is 2654788343. The reversal of 2654788321 is 1238874562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1366337296 + 1288451025 = 36964^2 + 35895^2 .

It is a cyclic number.

It is not a de Polignac number, because 2654788321 - 2³ = 2654788313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2654788621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327394160 + 1327394161.

It is an arithmetic number, because the mean of its divisors is an integer number (1327394161).

Almost surely, 2^2654788321 is an apocalyptic number.

It is an amenable number.

2654788321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654788321 is an equidigital number, since it uses as much as digits as its factorization.

2654788321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 46.

The square root of 2654788321 is about 51524.6379996987. The cubic root of 2654788321 is about 1384.6604877075.

The spelling of 2654788321 in words is "two billion, six hundred fifty-four million, seven hundred eighty-eight thousand, three hundred twenty-one".