12969550256 has 40 divisors (see below), whose sum is σ = 27432202560. Its totient is φ = 5903940096.

The previous prime is 12969550229. The next prime is 12969550267. The reversal of 12969550256 is 65205596921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411896 + ... + 442263.

It is an arithmetic number, because the mean of its divisors is an integer number (685805064).

Almost surely, 2^12969550256 is an apocalyptic number.

12969550256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12969550256 is an abundant number, since it is smaller than the sum of its proper divisors (14462652304).

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

12969550256 is a wasteful number, since it uses less digits than its factorization.

12969550256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854253 (or 854247 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 50.

The spelling of 12969550256 in words is "twelve billion, nine hundred sixty-nine million, five hundred fifty thousand, two hundred fifty-six".