12849374728 has 16 divisors (see below), whose sum is σ = 24188567760. Its totient is φ = 6399090000.

The previous prime is 12849374717. The next prime is 12849374737. The reversal of 12849374728 is 82747394821.

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, 3197538 + ... + 3201553.

It is an arithmetic number, because the mean of its divisors is an integer number (1511785485).

Almost surely, 2^12849374728 is an apocalyptic number.

It is an amenable number.

12849374728 is a deficient number, since it is larger than the sum of its proper divisors (11339193032).

12849374728 is a wasteful number, since it uses less digits than its factorization.

12849374728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399348 (or 6399344 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The spelling of 12849374728 in words is "twelve billion, eight hundred forty-nine million, three hundred seventy-four thousand, seven hundred twenty-eight".