12943639457284 has 12 divisors (see below), whose sum is σ = 22651395278400. Its totient is φ = 6471812234888.

The previous prime is 12943639457261. The next prime is 12943639457311. The reversal of 12943639457284 is 48275493634921.

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, 4202097 + ... + 6598855.

It is an arithmetic number, because the mean of its divisors is an integer number (1887616273200).

Almost surely, 2^{12943639457284} is an apocalyptic number.

It is an amenable number.

12943639457284 is a deficient number, since it is larger than the sum of its proper divisors (9707755821116).

12943639457284 is a wasteful number, since it uses less digits than its factorization.

12943639457284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746882 (or 3746880 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 67.

The spelling of 12943639457284 in words is "twelve trillion, nine hundred forty-three billion, six hundred thirty-nine million, four hundred fifty-seven thousand, two hundred eighty-four".