12582278539776 has 2240 divisors, whose sum is σ = 46096666767360. Its totient is φ = 3414323404800.

The previous prime is 12582278539741. The next prime is 12582278539777. The reversal of 12582278539776 is 67793587228521.

It is a happy number.

12582278539776 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 227 + 8 + 5 + 397 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

Its product of digits (711244800) is a multiple of the sum of its prime factors (162).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12582278539777) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 292611128811 + ... + 292611128853.

Almost surely, 2^{12582278539776} is an apocalyptic number.

12582278539776 is a gapful number since it is divisible by the number (16) 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 12582278539776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23048333383680).

12582278539776 is an abundant number, since it is smaller than the sum of its proper divisors (33514388227584).

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

12582278539776 is an frugal number, since it uses more digits than its factorization.

12582278539776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 109 counting only the distinct ones).

The product of its digits is 711244800, while the sum is 72.

The spelling of 12582278539776 in words is "twelve trillion, five hundred eighty-two billion, two hundred seventy-eight million, five hundred thirty-nine thousand, seven hundred seventy-six".