12286505776 has 80 divisors (see below), whose sum is σ = 24946403328. Its totient is φ = 5855385600.

The previous prime is 12286505771. The next prime is 12286505837. The reversal of 12286505776 is 67750568221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12286505771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12652971 + ... + 12653941.

Almost surely, 2^12286505776 is an apocalyptic number.

12286505776 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 12286505776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12473201664).

12286505776 is an abundant number, since it is smaller than the sum of its proper divisors (12659897552).

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

12286505776 is a wasteful number, since it uses less digits than its factorization.

12286505776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 12286505776 in words is "twelve billion, two hundred eighty-six million, five hundred five thousand, seven hundred seventy-six".