2748066779 has 16 divisors (see below), whose sum is σ = 3003539616. Its totient is φ = 2503987200.

The previous prime is 2748066751. The next prime is 2748066787. The reversal of 2748066779 is 9776608472.

It is a cyclic number.

It is not a de Polignac number, because 2748066779 - 2²⁰ = 2747018203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748066719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76259 + ... + 106355.

It is an arithmetic number, because the mean of its divisors is an integer number (187721226).

Almost surely, 2^2748066779 is an apocalyptic number.

2748066779 is a deficient number, since it is larger than the sum of its proper divisors (255472837).

2748066779 is a wasteful number, since it uses less digits than its factorization.

2748066779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30286.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The square root of 2748066779 is about 52422.0066288958. The cubic root of 2748066779 is about 1400.6912876835.

The spelling of 2748066779 in words is "two billion, seven hundred forty-eight million, sixty-six thousand, seven hundred seventy-nine".