12298539428 has 12 divisors (see below), whose sum is σ = 24597078912. Its totient is φ = 5270802600.

The previous prime is 12298539413. The next prime is 12298539437. The reversal of 12298539428 is 82493589221.

12298539428 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12298539428.

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, 219616748 + ... + 219616803.

It is an arithmetic number, because the mean of its divisors is an integer number (2049756576).

Almost surely, 2^12298539428 is an apocalyptic number.

It is an amenable number.

12298539428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12298539428 is a wasteful number, since it uses less digits than its factorization.

12298539428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439233562 (or 439233560 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The spelling of 12298539428 in words is "twelve billion, two hundred ninety-eight million, five hundred thirty-nine thousand, four hundred twenty-eight".