12823393488 has 40 divisors (see below), whose sum is σ = 35075755008. Its totient is φ = 4023025152.

The previous prime is 12823393487. The next prime is 12823393537. The reversal of 12823393488 is 88439332821.

It is a super-2 number, since 2×12823393488² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 12823393488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12823393487) 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, 7856656 + ... + 7858287.

Almost surely, 2^12823393488 is an apocalyptic number.

It is an amenable number.

12823393488 is an abundant number, since it is smaller than the sum of its proper divisors (22252361520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12823393488 is a wasteful number, since it uses less digits than its factorization.

12823393488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15714971 (or 15714965 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The spelling of 12823393488 in words is "twelve billion, eight hundred twenty-three million, three hundred ninety-three thousand, four hundred eighty-eight".