12928821018 has 16 divisors (see below), whose sum is σ = 26488316736. Its totient is φ = 4204494560.

The previous prime is 12928820999. The next prime is 12928821043. The reversal of 12928821018 is 81012882921.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26277846 + ... + 26278337.

It is an arithmetic number, because the mean of its divisors is an integer number (1655519796).

Almost surely, 2^12928821018 is an apocalyptic number.

12928821018 is an abundant number, since it is smaller than the sum of its proper divisors (13559495718).

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

12928821018 is a wasteful number, since it uses less digits than its factorization.

12928821018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52556229.

The product of its (nonzero) digits is 36864, while the sum is 42.

The spelling of 12928821018 in words is "twelve billion, nine hundred twenty-eight million, eight hundred twenty-one thousand, eighteen".