3668563806494 has 16 divisors (see below), whose sum is σ = 5554930946400. Its totient is φ = 1817001477984.

The previous prime is 3668563806491. The next prime is 3668563806503. The reversal of 3668563806494 is 4946083658663.

3668563806494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668563806491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20239634 + ... + 20420085.

It is an arithmetic number, because the mean of its divisors is an integer number (347183184150).

Almost surely, 2^{3668563806494} is an apocalyptic number.

3668563806494 is a deficient number, since it is larger than the sum of its proper divisors (1886367139906).

3668563806494 is a wasteful number, since it uses less digits than its factorization.

3668563806494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40660147.

The product of its (nonzero) digits is 537477120, while the sum is 68.

The spelling of 3668563806494 in words is "three trillion, six hundred sixty-eight billion, five hundred sixty-three million, eight hundred six thousand, four hundred ninety-four".