11783650645 has 8 divisors (see below), whose sum is σ = 15228102456. Its totient is φ = 8701772736.

The previous prime is 11783650639. The next prime is 11783650667. The reversal of 11783650645 is 54605638711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2402372196 + 9381278449 = 49014^2 + 96857^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11783650645 - 2⁹ = 11783650133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11783650595 and 11783650604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90643402 + ... + 90643531.

It is an arithmetic number, because the mean of its divisors is an integer number (1903512807).

Almost surely, 2^11783650645 is an apocalyptic number.

It is an amenable number.

11783650645 is a deficient number, since it is larger than the sum of its proper divisors (3444451811).

11783650645 is a wasteful number, since it uses less digits than its factorization.

11783650645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181286951.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 11783650645 in words is "eleven billion, seven hundred eighty-three million, six hundred fifty thousand, six hundred forty-five".