823873093645 has 24 divisors (see below), whose sum is σ = 1150257612384. Its totient is φ = 564844273056.

The previous prime is 823873093639. The next prime is 823873093651. The reversal of 823873093645 is 546390378328.

823873093645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (823873093639) and next prime (823873093651).

It is not a de Polignac number, because 823873093645 - 2¹⁵ = 823873060877 is a prime.

It is a super-3 number, since 3×823873093645³ (a number of 37 digits) contains 333 as substring.

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 823873093645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1150834 + ... + 1723996.

It is an arithmetic number, because the mean of its divisors is an integer number (47927400516).

Almost surely, 2^823873093645 is an apocalyptic number.

It is an amenable number.

823873093645 is a deficient number, since it is larger than the sum of its proper divisors (326384518739).

823873093645 is a wasteful number, since it uses less digits than its factorization.

823873093645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579049 (or 579042 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 58.

The spelling of 823873093645 in words is "eight hundred twenty-three billion, eight hundred seventy-three million, ninety-three thousand, six hundred forty-five".