102823368817 has 36 divisors (see below), whose sum is σ = 115084355484. Its totient is φ = 91300055040.

The previous prime is 102823368761. The next prime is 102823368863. The reversal of 102823368817 is 718863328201.

It can be written as a sum of positive squares in 6 ways, for example, as 49632710656 + 53190658161 = 222784^2 + 230631^2 .

It is not a de Polignac number, because 102823368817 - 2⁷ = 102823368689 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 (102823368887) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 532763473 + ... + 532763665.

Almost surely, 2^102823368817 is an apocalyptic number.

It is an amenable number.

102823368817 is a deficient number, since it is larger than the sum of its proper divisors (12260986667).

102823368817 is an frugal number, since it uses more digits than its factorization.

102823368817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 102823368817 in words is "one hundred two billion, eight hundred twenty-three million, three hundred sixty-eight thousand, eight hundred seventeen".