12947513004 has 144 divisors (see below), whose sum is σ = 36245035008. Its totient is φ = 3876263424.

The previous prime is 12947512973. The next prime is 12947513023. The reversal of 12947513004 is 40031574921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12947513004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8261829 + ... + 8263395.

It is an arithmetic number, because the mean of its divisors is an integer number (251701632).

Almost surely, 2^12947513004 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 12947513004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18122517504).

12947513004 is an abundant number, since it is smaller than the sum of its proper divisors (23297522004).

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

12947513004 is a wasteful number, since it uses less digits than its factorization.

12947513004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 12947513004 in words is "twelve billion, nine hundred forty-seven million, five hundred thirteen thousand, four".