2748780427 has 2 divisors, whose sum is σ = 2748780428. Its totient is φ = 2748780426.

The previous prime is 2748780409. The next prime is 2748780469. The reversal of 2748780427 is 7240878472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2748780427 - 2¹⁹ = 2748256139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2748780487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374390213 + 1374390214.

It is an arithmetic number, because the mean of its divisors is an integer number (1374390214).

Almost surely, 2^2748780427 is an apocalyptic number.

2748780427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748780427 is an equidigital number, since it uses as much as digits as its factorization.

2748780427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1404928, while the sum is 49.

The square root of 2748780427 is about 52428.8129466995. The cubic root of 2748780427 is about 1400.8125261274.

The spelling of 2748780427 in words is "two billion, seven hundred forty-eight million, seven hundred eighty thousand, four hundred twenty-seven".