12446047480 has 64 divisors (see below), whose sum is σ = 29850120000. Its totient is φ = 4654086144.

The previous prime is 12446047391. The next prime is 12446047499. The reversal of 12446047480 is 8474064421.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39901 + ... + 162739.

It is an arithmetic number, because the mean of its divisors is an integer number (466408125).

Almost surely, 2^12446047480 is an apocalyptic number.

12446047480 is a gapful number since it is divisible by the number (10) 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 12446047480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14925060000).

12446047480 is an abundant number, since it is smaller than the sum of its proper divisors (17404072520).

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

12446047480 is a wasteful number, since it uses less digits than its factorization.

12446047480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123016 (or 123012 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 12446047480 in words is "twelve billion, four hundred forty-six million, forty-seven thousand, four hundred eighty".