2748780469 has 2 divisors, whose sum is σ = 2748780470. Its totient is φ = 2748780468.

The previous prime is 2748780427. The next prime is 2748780479. The reversal of 2748780469 is 9640878472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1450619569 + 1298160900 = 38087^2 + 36030^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748780469 - 2¹³ = 2748772277 is a prime.

It is a super-2 number, since 2×2748780469² = 15111588133511719922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2748780409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374390234 + 1374390235.

It is an arithmetic number, because the mean of its divisors is an integer number (1374390235).

Almost surely, 2^2748780469 is an apocalyptic number.

It is an amenable number.

2748780469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748780469 is an equidigital number, since it uses as much as digits as its factorization.

2748780469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The square root of 2748780469 is about 52428.8133472426. The cubic root of 2748780469 is about 1400.8125332620.

The spelling of 2748780469 in words is "two billion, seven hundred forty-eight million, seven hundred eighty thousand, four hundred sixty-nine".