12706345472 has 80 divisors (see below), whose sum is σ = 26766001152. Its totient is φ = 6017064960.

The previous prime is 12706345429. The next prime is 12706345507. The reversal of 12706345472 is 27454360721.

It is a super-2 number, since 2×12706345472² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737468 + ... + 754500.

Almost surely, 2^12706345472 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 12706345472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13383000576).

12706345472 is an abundant number, since it is smaller than the sum of its proper divisors (14059655680).

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

12706345472 is an equidigital number, since it uses as much as digits as its factorization.

12706345472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17129 (or 17113 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 12706345472 in words is "twelve billion, seven hundred six million, three hundred forty-five thousand, four hundred seventy-two".