2756613663 has 12 divisors (see below), whose sum is σ = 4036321120. Its totient is φ = 1812567456.

The previous prime is 2756613661. The next prime is 2756613719. The reversal of 2756613663 is 3663166572.

2756613663 is a `hidden beast` number, since 27 + 5 + 6 + 613 + 6 + 6 + 3 = 666.

2756613663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2756613663 - 2¹ = 2756613661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2756613661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2097223 + ... + 2098536.

Almost surely, 2^2756613663 is an apocalyptic number.

2756613663 is a deficient number, since it is larger than the sum of its proper divisors (1279707457).

2756613663 is a wasteful number, since it uses less digits than its factorization.

2756613663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195838 (or 4195835 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 2756613663 is about 52503.4633429072. The cubic root of 2756613663 is about 1402.1419021506.

The spelling of 2756613663 in words is "two billion, seven hundred fifty-six million, six hundred thirteen thousand, six hundred sixty-three".