12648319026 has 32 divisors (see below), whose sum is σ = 29615580288. Its totient is φ = 3525663360.

The previous prime is 12648319007. The next prime is 12648319031. The reversal of 12648319026 is 62091384621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3670845 + ... + 3674288.

It is an arithmetic number, because the mean of its divisors is an integer number (925486884).

Almost surely, 2^12648319026 is an apocalyptic number.

12648319026 is an abundant number, since it is smaller than the sum of its proper divisors (16967261262).

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

12648319026 is a wasteful number, since it uses less digits than its factorization.

12648319026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345186.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 12648319026 in words is "twelve billion, six hundred forty-eight million, three hundred nineteen thousand, twenty-six".