12783992832 has 540 divisors, whose sum is σ = 43653508080. Its totient is φ = 3726508032.

The previous prime is 12783992807. The next prime is 12783992849. The reversal of 12783992832 is 23829938721.

12783992832 is a `hidden beast` number, since 1 + 278 + 3 + 99 + 283 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 672841719 + ... + 672841737.

Almost surely, 2^12783992832 is an apocalyptic number.

12783992832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12783992832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21826754040).

12783992832 is an abundant number, since it is smaller than the sum of its proper divisors (30869515248).

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

12783992832 is an frugal number, since it uses more digits than its factorization.

12783992832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 37 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 12783992832 in words is "twelve billion, seven hundred eighty-three million, nine hundred ninety-two thousand, eight hundred thirty-two".