12864650289428 has 24 divisors (see below), whose sum is σ = 25736534205312. Its totient is φ = 5511871489824.

The previous prime is 12864650289391. The next prime is 12864650289433. The reversal of 12864650289428 is 82498205646821.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 64484576 + ... + 64683767.

It is an arithmetic number, because the mean of its divisors is an integer number (1072355591888).

Almost surely, 2^{12864650289428} is an apocalyptic number.

It is an amenable number.

12864650289428 is an abundant number, since it is smaller than the sum of its proper divisors (12871883915884).

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

12864650289428 is a wasteful number, since it uses less digits than its factorization.

12864650289428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129171911 (or 129171909 counting only the distinct ones).

The product of its (nonzero) digits is 106168320, while the sum is 65.

The spelling of 12864650289428 in words is "twelve trillion, eight hundred sixty-four billion, six hundred fifty million, two hundred eighty-nine thousand, four hundred twenty-eight".