912644941823 has 4 divisors (see below), whose sum is σ = 913079743800. Its totient is φ = 912210139848.

The previous prime is 912644941801. The next prime is 912644941847. The reversal of 912644941823 is 328149446219.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328149446219 = 7 ⋅46878492317.

It is a cyclic number.

It is not a de Polignac number, because 912644941823 - 2¹⁶ = 912644876287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912644941123) 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, 217397840 + ... + 217402037.

It is an arithmetic number, because the mean of its divisors is an integer number (228269935950).

Almost surely, 2^912644941823 is an apocalyptic number.

912644941823 is a deficient number, since it is larger than the sum of its proper divisors (434801977).

912644941823 is a wasteful number, since it uses less digits than its factorization.

912644941823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434801976.

The product of its digits is 2985984, while the sum is 53.

The spelling of 912644941823 in words is "nine hundred twelve billion, six hundred forty-four million, nine hundred forty-one thousand, eight hundred twenty-three".