12271407576 has 128 divisors (see below), whose sum is σ = 32144817600. Its totient is φ = 3900948480.

The previous prime is 12271407571. The next prime is 12271407587. The reversal of 12271407576 is 67570417221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271407571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6904800 + ... + 6906576.

Almost surely, 2^12271407576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12271407576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16072408800).

12271407576 is an abundant number, since it is smaller than the sum of its proper divisors (19873410024).

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

12271407576 is a wasteful number, since it uses less digits than its factorization.

12271407576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1985 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 12271407576 in words is "twelve billion, two hundred seventy-one million, four hundred seven thousand, five hundred seventy-six".