12671233784 has 128 divisors (see below), whose sum is σ = 28444608000. Its totient is φ = 5230579200.

The previous prime is 12671233769. The next prime is 12671233789. The reversal of 12671233784 is 48733217621.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671233789) 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, 3578687 + ... + 3582225.

It is an arithmetic number, because the mean of its divisors is an integer number (222223500).

Almost surely, 2^12671233784 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 12671233784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14222304000).

12671233784 is an abundant number, since it is smaller than the sum of its proper divisors (15773374216).

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

12671233784 is a wasteful number, since it uses less digits than its factorization.

12671233784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669 (or 3665 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The spelling of 12671233784 in words is "twelve billion, six hundred seventy-one million, two hundred thirty-three thousand, seven hundred eighty-four".