12339154728 has 48 divisors (see below), whose sum is σ = 33841579200. Its totient is φ = 4060985760.

The previous prime is 12339154687. The next prime is 12339154733. The reversal of 12339154728 is 82745193321.

It is a happy number.

12339154728 is a `hidden beast` number, since 12 + 3 + 3 + 91 + 547 + 2 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1078978 + ... + 1090353.

It is an arithmetic number, because the mean of its divisors is an integer number (705032900).

Almost surely, 2^12339154728 is an apocalyptic number.

12339154728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12339154728 is an abundant number, since it is smaller than the sum of its proper divisors (21502424472).

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

12339154728 is a wasteful number, since it uses less digits than its factorization.

12339154728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169422 (or 2169415 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 12339154728 in words is "twelve billion, three hundred thirty-nine million, one hundred fifty-four thousand, seven hundred twenty-eight".