12256389079 has 16 divisors (see below), whose sum is σ = 13795326720. Its totient is φ = 10792152000.

The previous prime is 12256389077. The next prime is 12256389091. The reversal of 12256389079 is 97098365221.

It is a cyclic number.

It is not a de Polignac number, because 12256389079 - 2¹ = 12256389077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256389077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35067 + ... + 160444.

It is an arithmetic number, because the mean of its divisors is an integer number (862207920).

Almost surely, 2^12256389079 is an apocalyptic number.

12256389079 is a deficient number, since it is larger than the sum of its proper divisors (1538937641).

12256389079 is a wasteful number, since it uses less digits than its factorization.

12256389079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195702.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 12256389079 in words is "twelve billion, two hundred fifty-six million, three hundred eighty-nine thousand, seventy-nine".