12783863700 has 216 divisors, whose sum is σ = 42247296000. Its totient is φ = 3228537600.

The previous prime is 12783863683. The next prime is 12783863753. The reversal of 12783863700 is 736838721.

12783863700 is a `hidden beast` number, since 1 + 2 + 7 + 8 + 3 + 8 + 637 + 0 + 0 = 666.

It is a super-2 number, since 2×12783863700² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1306426 + ... + 1316174.

Almost surely, 2^12783863700 is an apocalyptic number.

12783863700 is a gapful number since it is divisible by the number (10) 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 12783863700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21123648000).

12783863700 is an abundant number, since it is smaller than the sum of its proper divisors (29463432300).

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

12783863700 is a wasteful number, since it uses less digits than its factorization.

12783863700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9847 (or 9837 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 12783863700 in words is "twelve billion, seven hundred eighty-three million, eight hundred sixty-three thousand, seven hundred".