923981768817 has 8 divisors (see below), whose sum is σ = 1238858238240. Its totient is φ = 612546572640.

The previous prime is 923981768797. The next prime is 923981768819. The reversal of 923981768817 is 718867189329.

923981768817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 923981768817 - 2⁶ = 923981768753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (923981768819) 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, 860317684 + ... + 860318757.

It is an arithmetic number, because the mean of its divisors is an integer number (154857279780).

Almost surely, 2^923981768817 is an apocalyptic number.

It is an amenable number.

923981768817 is a deficient number, since it is larger than the sum of its proper divisors (314876469423).

923981768817 is a wasteful number, since it uses less digits than its factorization.

923981768817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720636623.

The product of its digits is 73156608, while the sum is 69.

The spelling of 923981768817 in words is "nine hundred twenty-three billion, nine hundred eighty-one million, seven hundred sixty-eight thousand, eight hundred seventeen".