12881946913 has 8 divisors (see below), whose sum is σ = 14088435840. Its totient is φ = 11681358480.

The previous prime is 12881946893. The next prime is 12881946947. The reversal of 12881946913 is 31964918821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12881946913 - 2²¹ = 12879849761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12881946013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470553 + ... + 1479286.

It is an arithmetic number, because the mean of its divisors is an integer number (1761054480).

Almost surely, 2^12881946913 is an apocalyptic number.

It is an amenable number.

12881946913 is a deficient number, since it is larger than the sum of its proper divisors (1206488927).

12881946913 is a wasteful number, since it uses less digits than its factorization.

12881946913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950247.

The product of its digits is 746496, while the sum is 52.

The spelling of 12881946913 in words is "twelve billion, eight hundred eighty-one million, nine hundred forty-six thousand, nine hundred thirteen".