11563893709446 has 32 divisors (see below), whose sum is σ = 25071794028288. Its totient is φ = 3534557421600.

The previous prime is 11563893709397. The next prime is 11563893709463. The reversal of 11563893709446 is 64490739836511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490898976 + ... + 490922531.

It is an arithmetic number, because the mean of its divisors is an integer number (783493563384).

Almost surely, 2^{11563893709446} is an apocalyptic number.

11563893709446 is an abundant number, since it is smaller than the sum of its proper divisors (13507900318842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11563893709446 is a wasteful number, since it uses less digits than its factorization.

11563893709446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981821676.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 11563893709446 in words is "eleven trillion, five hundred sixty-three billion, eight hundred ninety-three million, seven hundred nine thousand, four hundred forty-six".