12947309484 has 12 divisors (see below), whose sum is σ = 30210388824. Its totient is φ = 4315769824.

The previous prime is 12947309467. The next prime is 12947309491. The reversal of 12947309484 is 48490374921.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539471217 + ... + 539471240.

It is an arithmetic number, because the mean of its divisors is an integer number (2517532402).

Almost surely, 2^12947309484 is an apocalyptic number.

It is an amenable number.

12947309484 is an abundant number, since it is smaller than the sum of its proper divisors (17263079340).

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

12947309484 is a wasteful number, since it uses less digits than its factorization.

12947309484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078942464 (or 1078942462 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 12947309484 in words is "twelve billion, nine hundred forty-seven million, three hundred nine thousand, four hundred eighty-four".