2442728251 has 2 divisors, whose sum is σ = 2442728252. Its totient is φ = 2442728250.

The previous prime is 2442728243. The next prime is 2442728279. The reversal of 2442728251 is 1528272442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2442728251 - 2³ = 2442728243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2442728251.

It is not a weakly prime, because it can be changed into another prime (2442738251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221364125 + 1221364126.

It is an arithmetic number, because the mean of its divisors is an integer number (1221364126).

Almost surely, 2^2442728251 is an apocalyptic number.

2442728251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2442728251 is an equidigital number, since it uses as much as digits as its factorization.

2442728251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680, while the sum is 37.

The square root of 2442728251 is about 49423.9643391746. The cubic root of 2442728251 is about 1346.7646808120.

The spelling of 2442728251 in words is "two billion, four hundred forty-two million, seven hundred twenty-eight thousand, two hundred fifty-one".