12654423605 has 24 divisors (see below), whose sum is σ = 16219883232. Its totient is φ = 9475058016.

The previous prime is 12654423601. The next prime is 12654423629. The reversal of 12654423605 is 50632445621.

12654423605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12654423605 - 2² = 12654423601 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 (12654423601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107582 + ... + 192048.

It is an arithmetic number, because the mean of its divisors is an integer number (675828468).

Almost surely, 2^12654423605 is an apocalyptic number.

It is an amenable number.

12654423605 is a deficient number, since it is larger than the sum of its proper divisors (3565459627).

12654423605 is an equidigital number, since it uses as much as digits as its factorization.

12654423605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84593 (or 84574 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 12654423605 in words is "twelve billion, six hundred fifty-four million, four hundred twenty-three thousand, six hundred five".