2748655561 has 8 divisors (see below), whose sum is σ = 2762593344. Its totient is φ = 2734749360.

The previous prime is 2748655543. The next prime is 2748655571. The reversal of 2748655561 is 1655568472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2748655561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748655571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177450 + ... + 192316.

It is an arithmetic number, because the mean of its divisors is an integer number (345324168).

Almost surely, 2^2748655561 is an apocalyptic number.

It is an amenable number.

2748655561 is a deficient number, since it is larger than the sum of its proper divisors (13937783).

2748655561 is a wasteful number, since it uses less digits than its factorization.

2748655561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15791.

The product of its digits is 2016000, while the sum is 49.

The square root of 2748655561 is about 52427.6221184978. The cubic root of 2748655561 is about 1400.7913147199.

The spelling of 2748655561 in words is "two billion, seven hundred forty-eight million, six hundred fifty-five thousand, five hundred sixty-one".