12239987760 has 1920 divisors, whose sum is σ = 62240016384. Its totient is φ = 2149908480.

The previous prime is 12239987759. The next prime is 12239987761. The reversal of 12239987760 is 6778993221.

12239987760 is a `hidden beast` number, since 122 + 399 + 8 + 77 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (12239987759) and next prime (12239987761).

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

It is a junction number, because it is equal to n+sod(n) for n = 12239987697 and 12239987706.

It is not an unprimeable number, because it can be changed into a prime (12239987761) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 330810462 + ... + 330810498.

Almost surely, 2^12239987760 is an apocalyptic number.

12239987760 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 12239987760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31120008192).

12239987760 is an abundant number, since it is smaller than the sum of its proper divisors (50000028624).

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

12239987760 is a wasteful number, since it uses less digits than its factorization.

12239987760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

It can be divided in two parts, 12239 and 987760, that added together give a palindrome (999999).

The spelling of 12239987760 in words is "twelve billion, two hundred thirty-nine million, nine hundred eighty-seven thousand, seven hundred sixty".