11563650743 has 4 divisors (see below), whose sum is σ = 12172263960. Its totient is φ = 10955037528.

The previous prime is 11563650739. The next prime is 11563650797. The reversal of 11563650743 is 34705636511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11563650743 - 2² = 11563650739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11563650743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11563650643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304306580 + ... + 304306617.

It is an arithmetic number, because the mean of its divisors is an integer number (3043065990).

Almost surely, 2^11563650743 is an apocalyptic number.

11563650743 is a deficient number, since it is larger than the sum of its proper divisors (608613217).

11563650743 is an equidigital number, since it uses as much as digits as its factorization.

11563650743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608613216.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 11563650743 in words is "eleven billion, five hundred sixty-three million, six hundred fifty thousand, seven hundred forty-three".